5 Deadly Insects ft. Draw Curiosity! [CC]


The audio for that bit is gonna be great… three two one
action! Hi, welcome to SquidThink! Hi! this is Inés Dawson, she’s from draw curiosity
on YouTube and she has been so generous as to make the time to talk about
insects! Specifically the deadliest ones because you know insects are badass
– protect yourself. So insects are a class and they’re in the phylum Arthropoda.
Arthropoda comes from the greek words of arthron meaning joint and poda meaning
leg or foot so they are joint leg/ footed, up to you, up to your discretion
as to which one. There are many subclasses within insecta such as paleoptera which includes orders like odonata which has
dragonflies and mayflies, or paraneoptera which includes things like hemiptera which are the true bugs so don’t just go around calling insects
bugs because you’re wrong you idiot. So there are two reasons why the insects
that we’re going to be talking about today are deadly!
we’re gonna be talking about two types 1. vectors and 2. venomous. So if you’re a
vector you’re a disease carrying organism and that is bad,
we don’t like vectors, and there are a lot of insects that do that.
Yeah there’s… there’s a lot of them. and we’re gonna be talking about the venomous ones
– remember the difference between venomous and poisonous: poisonous is you munch on
them you die, venomous is they munch on you then you die…did I say that right?
you did! I was like: good, she knows it!
The vast majority of insects that we’re going to be looking at all
belong to Endopterygota because pretty much the vast majority of insects
can be found there and the reason why is because the larval form is different to
the adult form so they undergo metamorphosis
metamorphosis, yeah!
think your caterpillar that becomes a butterfly or your maggot that becomes a
fly or a beetle. There are many many many good things about having your youthful
form to be very different to your adult form which is your youngsters and your
adults don’t actually compete for the same niche, but it also means they can
get quite crazy life cycles where they heavily specialize on
particular animals which will play into the vector lifestyle
– how interesting don’t you want to learn more??
one of the orders that we’re gonna be talking about
today is siphenoptera so that includes the fleas they have 2,500 species within
them. They’re obligate ectoparasites which means they have to live on top of
a body in order to live they have to be drinking your blood because they suck
get it?? they have a lifespan of roughly a hundred days and they are ridiculously
fast breeders they lay about fifty eggs a day and they can lay up to 2,000
within their lifecycle. So why are these guys deadly? we all know about
fleas because we all know about the Black Plague, we all know about the Black
Death where about 25 million people died… the plague is quite rare nowadays but it
is still around symptoms of the plague can include things like diarrhea, extreme
vomiting, gangrene where your skin just turns black and necrosis and falls off
your body which you don’t want in case you didn’t know… I mean you might want a
necrotic black arm? if y’know that’s your thing?
– not sure if it’s in style or
not, but free costume?
– yeah free costume! yeah just get the plague
They are also vectors of Lyme disease this can cause skin rashes headaches
night sweats or heart and neurological problems. Lyme disease can cause a
cardiological symptom called heart block there were three reported deaths because
of this from 2012 to 2013 so it’s deadly it’s not good. I also did
not realize that fleas could be carriers of Lyme disease because I
always thought of them as you know the ticks, the famous ticks from the
fields or the lungs that carry it and I mean plenty of ticks do carry Lyme
disease unsurprising that there should be sucky bugs that would do that as well.
– They can also cause murine typhus which causes join and back pain and more
nausea and more vomiting and many more diseases as well! so many in fact we
don’t have time to talk about them so let’s move on to the next insect!
Fronting the next section are the hymenopteran which is the bees the
wasps and the ants and we’re going to talk about the fire ants
so fire ant bites apart from hurting a bit like fire can cause death nap to
around five percent of cases. This is because there’s a toxin which is an
alkaloid protein called solenopsin which can cause an allergic reaction in
around five percent of people or basically cause an anaphylactic shock so
whilst one or two bites is probably fine if you do find yourself caught up in a
fire ants nest and you happen to be allergic that could spell bad news for
you if you’re not able to get an EpiPen or to Hospital pretty soon.
– or if you’re like me and you can’t use an EpiPen in your anaphylactic reaction
you’re F**KED another notable mention from Hymenoptera
is the Africanized honeybees. They’re genetically modified to survive better
in tropical conditions and to provide more honey
Africanized honeybees are far more aggressive than traditional…
traditional bees?? *European. Approximately a thousand deaths per year are
attributed to Africanized honeybees and that’s because they sting ten times more
than European honeybees. They also have more aggressive behavior in
general and they’re higher on guards so honeybees have guards outside of their
nests so that other bees or intruders like wasps or other insects don’t steal
their hard-earned honey. There’s many theories as to how they differentiate
between conspecifics and allospecifics one of these theories is the odor
convergence hypothesis where different species or different hives will forage
on different plants, so one might forage on an orange blossom and take nectar
from the orange blossom tree and others might take it from the Jasmine bush or
something like that. However many experiments have been done which have
kind of disproven this one so the primary theory at the moment is pheromones
– and in fact it’s most likely almost certainly pheromones because hymenopterans have these CHCs or special compounds found on their cuticles which
is determined genetically and basically they’re more related all of the
individuals are inside the hive the more likely they are to have kind of a
unified hive smell where everyone smells the same and my guess because I don’t
actually know this but I think that Africanised
honey bees probably only have one drone and maybe the queen is monogamous which
means that all of them are highly related so there’s higher stakes for all
of the workers to try and protect the hive a lot more, which if I can be sneaky
and do a self-promo I do have a video on superorganisms which is about
how very strict monogamy in organisms causes the evolution of super-organisms
and quite possibly that might be what’s happening with these Africanized honey
bees. but also apparently with strict monogamy comes strict aggressiveness
against everyone who that’s not from the clan
– rad!
we have a prop for the next one
so the next one is the Asian… I almost said Asian giant African Hornet I was
like wait, no!
– Asian giant European African hornet
– they spread all over the world and change its name
– a symbol of diversity!
– next up is probably one you’ve been waiting for which is the
Asian giant Hornet, they caused around 30 to 50 deaths annually in Japan. They’re
pretty hefty in size – so this is NOT a deadly Hornet, it’s the
largest European wasp species and it’s actually pretty docile it just likes to
sting scarabs and not much else but it’s pretty big the Asian Hornet is
bigger than this. Not only do they sting you but when you kill one of them they
actually release an attack pheromone which calls out to all of the other ones
who go into essentially guarding mode and they’ll all go and sting you
together and it’s a similar situation as with maybe the fire ants or with
honeybees where one or two stings might be fine but when you’re pretty much
attacked by a swarm it’s a lot more likely to cause or trigger an
anaphylactic reaction and being so large and having such a dangerous sting
already makes them dangerous so if you ever see a Hornet be
careful like Asian Hornet to any kind of Hornet
just stay away from them appreciate their largeness from afar! They are big for a
reason you can see them just as well while maintaining a good distance. In
addition to squishing other Hornets as a way to trigger their pheromones
there are also c5 to c10 esters which you can do this such as certain food
scents i think apple flavors well one of the ones i read about, just watch out
when eating apples around in japan fortunately, apples are quite expensive
in Japan
– Oh yeah! the next order we’re gonna be talking about is hemiptera
otherwise known as the true bugs the ones that I mentioned in the beginning
that I got mad at you for calling other insects bugs for. The bug that we’re
going to be talking about from the Hemiptera order is the kissing bugs, these
are found in Asia Africa Australia and in some parts of America. They’re part of
the subfamily triatomine and there are also potential vectors for Chagas
disease.
– I had a bit of a scare with Chagas disease and by a bit of a scare
I mean I’ve got bitten by a kissing bug at the time I wasn’t too sure if I could
be at risk of Chagas or not. Basically kissing bugs poop as they eat and then
the parasite is found in the poop and it’s quite easy for it to get into the
wounds on your face
– *nature is beautiful* only about 20% of people get the acute
phase of Chagas disease so it’s usually characterized by what’s known as
romanya’s symptom where your face swells up or the site of the bite we might get
a fever and might get some form of malaise, however this usually happens in
people who are younger or elderly patients, maybe immunocompromised people.
It’s not unusual to develop it but just not know about it. And then it goes onto
the chronic phase so the parasite will lodge itself somewhere in your body
usually heart muscle and then it just goes dormant for a very long time until
it decides to resurface… what happens then?
– so it can do one of two things it
could either affect your nervous system so it can affect your motor skills which
can cause dementia and confusion or it can affect your digestive system and
cause enlargement of the tissues giving you a mega colon or a mega esophagus.
That being said there was some good news and it is that Chagas isn’t quite the
death sentence it used to be. Firstly detection methods
are a lot better so in my case I actually got an antibody test done and
it came back clear so pretty much it was just me being worried about bites
appearing on my face, but if it does come up positive there are special medicines
that are targeted to these parasites so you would have to take them I think for
a few months or however long your doctor says. The medication does come with side
effects so it won’t be pleasant but in most cases it completely gets rid of it
and of course the best thing to do is always to exercise caution if you’re
going somewhere that could be dangerous or contain dangerous insects then
obviously wear DEET, have mosquito repellent, have a mosquito net check your
mattress for bed bugs, bugs, fleas anything that could potentially prey on
you at night, and enjoy your stay! – Are you a Travelodge? We’re filming in a hotel
right now if you can’t tell, we walked into the lobby and we saw this giant crystal
chandelier of they’re both just kind of went “HOLY F*CK”. She found a jaguar in
the toilet I still don’t know if this is the car Jaguar or like a animal Jaguar
but it doesn’t matter it has the same level of opulence
– I’m just yeah I’m gonna leave that to your imagination, and I’ll
say one more thing: there were two of them Screams luxury, doesnt scream bed bugs
– so what have we learnt from today number one we’ve
learned that lots of tiny things can kill you we really should mention though
that all of the insects that we’ve talked about today and all of the
diseases that you can get the deaths that are associated with the insects
that we’ve been talking about are really rare in fact you’re much more likely to
have a far more common death though I don’t know being run over being in a
traffic accident or maybe having a tree fall on top of you I’m terrified of
trees in practice you know watch out for certain but for certain bugs of the true
and fake a variety but as you say we tend to glamorize fear and things that
are unusual but scary and out you know out of this world
we’re much more likely to talk about them and remember
they’re a lot less likely to happen as well what we’re trying to say is that
nature yes it can be dangerous and yes it can be scary but it’s also really
really important and insects as tiny as they are also vitally important to the
ecosystem as obviously much the time they’re probably a little bit more
scared of you well then vice versa I mean there is a reason that these bees
are attacking intruders in the first place they’re just trying to protect
their home yeah as long as you stay away from them give them their breathing
space there’s no reason they should come for you remember that we share the
planet with a bunch of things and some of those things have six legs it should
be nice of them and some of them bite some of them sting some of them are
vectors some of them are venomous but all of them are lovely as well here we
should have mentioned mosquitoes yeah we should another
hopefully you’ve learned something new from today’s video yeah and about a few
new insects hopefully you were someone who didn’t hate insects so I hope you
don’t hate them now after hearing about them the vast majority are good eggs
just doing their ecological nice job out there a lot of them are pollinators as
well so you know next time you bite into a juicy Apple not around wasps though
remember we talked about this you have the bees and the other pollinators and
all the lovely things with wings to thank for that
but yeah that’s all we have for you today guys I really really hope you
enjoyed this video if you did then hit the like button because it’s a free way
that you can support the channel please go and check out in aces Channel because
oh my goodness it’s just so good and she’s so professional so knowledgeable
it’s got PhD she’s so smart I will leave all of our information in the
description box below as well as on screen somewhere I don’t know where it’s
going to be but it’ll be on screen and yet thank you so much for watching us
yeah and we’ll see you in one of the next ones rad see you guys later bye I
mean go to an Oscar that’s what I normally do what I enjoy

9 Sneaky, Dangerous and Unusual Insects | Love Nature

9 Sneaky, Dangerous and Unusual Insects | Love Nature


this giant grasshopper delivers about 50
calories if consumed which is why bugs have devised some remarkable ways to
avoid being eaten this giant spiny stick insect from New
Guinea is aptly named long sharp spines protrude from its back legs like daggers
these defensive weapons can inflict a very painful stab so most predators
leave the stick insect alone these young South American giant
grasshoppers don’t seem to have any form of defense so why do they hang around in
large groups out in the open sporting bright colors that make them stand out
because these are no ordinary colors orange on black is nature’s warning sign
I’m poisonous and taste foul leave me alone and it works if an inexperienced
predator takes a bite of these guys it won’t make the same mistake twice this
caterpillar of the monarch butterfly sends the same message it’s packed with
poisons stored from the nuclear plants that it eats it’s a universal signal to
predators anything black and white with bright red orange or yellow is best
avoided like this conspicuous Asian assassin bug
but this beastly bug is doubly equipped carrying poison and a dagger it has a
very sharp hollow beak that injects toxins into its prey before sucking them
dry wielding this hypodermic needle it can defend itself against any predator
that tries to eat it and the toxins provide an excruciating bite the Natalie
dressed tiger beetle lives in the same
grasslands as the assassin bug and sports a very similar wardrobe decked
out in vivid black and white but it’s all aru’s tiger beetles are mimics they
fool predators into thinking they’re poisonous so for this tiger beetle its biggest
threat right now is another tiger beetle stealing its dinner warning colors are
even more effective if they come with the element of surprise the hind wings of this Peruvian stick
insect are normally hidden their tiny useless for flight but create a bright
flash of color that startles predators nicosia stick insects use a similar
trick but they can actually fly the flash of shocking pink distracts
predators while the insect gets out of Dodge a dead leaf mantis
sits almost invisible in its disguise but if it is discovered plan B it
springs to life flashing its dramatic ice spots which must belong to a
fearsome creature it’s enough to scare off most predators I sports obviously work well they’re
used by all sorts of bugs this elephant hawk moth caterpillar has a tiny head
and two pairs of giant false eyes on the fattest juiciest part of its body moths
and butterflies have turned fake eyes into an art form they even have bright
white patch lights just like the reflections on real eyes being so small bugs might seem easy prey
but they found lots of ways to defend themselves from poison to mimicry and
Bluff you

Top 10 Deadliest Bugs

Top 10 Deadliest Bugs


Top 10 Deadliest Bugs It is estimated that there are about 10,000,000,000,000,000,000
insects living today. That’s right, a quintillion insects. In the world, there are about 900 thousand
different kinds of living insects, making up about 80% of all of the world’s species.
In the U.S. alone there are 91,000 known species and about 73,000 that have yet to be scientifically
described and classified. While the insects on this list are nowhere
near being the deadliest animals on earth, these bugs really do make their mark… sometimes
literally, sometimes remarkably- particularly for living things that are no bigger than
a human finger. 10. House Centipedes (Scutigera coleoptrata) Originating in the Mediterranean (or Mexico,
depending on the source), the house centipede has become a very common bug around the world.
You may think centipedes look unattractive but they are actually “good” bugs, as
they eat other pests and sometimes even spiders. Of course, if you have entomophobia (fear
of insects or bugs), then this argument isn’t going to help. In any case, centipedes are
more of a pest than they are a threat, but shockingly they can cause some damage. If
you are bitten by one of these insects, you’ll definitely feel it. Some who have experienced
it say that it is painful, but nothing that will send you off crying in the corner. What’s to Fear? While centipedes aren’t insects that are
responsible for tons and tons of deaths, you’d be surprised to find out that every two years
one person does die due to a centipede bite. This is usually due to an allergic reaction
to the venom that the bug can inject into your body when it bites you. However, it’s
rare that one is so allergic to this venom that it kills them. 9. Fire Ants (Solenopsis) While having a picnic with ants doesn’t
sound so bad, as most ants are harmless and miniscule compared to the human body, having
a picnic with fire ants definitely isn’t the wisest idea. There are over 280 different
species of ants that sting and one of the most widely known is the fire ant. Other ants
kill by stinging their prey and then spraying the wound with acid, but the fire ant is particularly
ruthless. They kill by stinging their prey and then injecting venom known as solenopsin.
And because of this, when a human is stung by the ant, it can be compared to the sensation
felt when being burned; however, the sting is usually minor and something that the body
can fight on its own. What’s to Fear? As you’d imagine, a little ant can’t do
much damage to a human. All we’d have to do is make a little use of our left shoe.
However, ants live in colonies and sometimes, with enough stings and enough bodily sensitivity,
the fire ants can kill. It is said that about 5% of those who report being bitten by a fire
ant die due to anaphylactic shock. Of course this is very far and in between, but there
are reports of deaths caused by an allergic reaction to the venom. 8. Siafu (Dorylus) Very similar to fire ants, Siafu are ants
that are mainly located in east and central Africa, but they can also be found in parts
of Asia. These ants are said to live in colonies of 20 million ants, notably 20 million blind
ants. They are able to travel through the use of pheromones. Out of these 20 million,
there is a group of ants known as the soldier ants. These ants are the ones that are able
to sting to fend off or kill prey. It is said that while the ants are able to sting, they
often use their jaws, made for shearing, to bite. The jaws of these ants are so strong
that in some locations in Africa, they are actually used as sutures which can hold for
up to four days, to allow wounds to heel properly. What’s to Fear? If one is stung by a Siafu, the bite is often
very minimal and nothing that requires a doctor. However, it is said that the young and elderly
are very susceptible to their bites, and some have died due to complications caused by the
ant bite. Around 20-50 people reportedly die each year from a Siafu bite. These ants are
often very aggressive and when you interrupt their colony, you just may be in a little
bit of trouble. 7. Wasps and Bees (Vespula germanica/Apis
mellifera) As pesky as they are, wherever you go, you’re
sure to find wasps and bees. On flowers, near something that smells sweet, or making a hive
in a very inconvenient place- wasps and bees are an everyday part of life when the weather
is warm enough to permit it. You’ve probably been stung at least once so you know what
it feels like. It’s usually not an event that requires medical attention – unless
you’re allergic. What’s to Fear? If you’re not allergic to a wasp or bee
sting, then you really have nothing to worry about. If you are allergic to wasp or bee
stings, then getting stung might be more of a problem. It is said that about 53 people
die each year because of an allergic reaction from being stung. Those who are allergic to
the venom let off after being stung can go into anaphylactic shock, which often brings
about hives, wheezing, confusion, pale skin, and sometimes unconsciousness and even death. 6. Asian Giant Hornet (Vespa mandarinia) You’ve probably seen a hornet once in your
life and you probably weren’t too fearful of it as they are usually pretty small and
pretty easy to rid of. However, imagine a hornet on steroids, and when you do, just
look to the Asian Giant Hornet. This hornet is said to be the biggest in the world, with
a length of 2 inches and a wing span of 3 inches. The hornet also sports a ¼ inch long
stinger, but being stung with by this hornet is definitely not like being stung like a
bee. While you won’t find these hornets anywhere near the U.S. or Europe, if you ever
make a trip to Eastern Asia, you’re sure to run into them a few times, especially if
you travel the mountainous places in Japan. What’s to Fear? Take it from someone who has experienced it.
According to Masato Ono, someone who has been stung by an Asian Giant Hornet, the sting
felt like a “like a hot nail being driven into his leg.” The venom that is released
by the stinger has about 8 different compounds, one that causes discomfort, one that can damage
soft tissue, and one that is able to create an odor that may attract even more hornets.
Those who are allergic to bees can die from the reaction, but some die because of a chemical
known as mandaratoxin which can be fatal if there is enough introduced into the body.
It is said that each year, about 70 people die from these stings. 5. Africanized Honey Bee (hybrid Apis mellifera
scutellata) While most of us can deal with normal bees,
the ones that we see all the time in our gardens, if you ever come into contact with an Africanized
Honey Bee, you’re definitely in for some trouble. Though normal bees do sting, being
stung by a honey bee is much different, as it’s unlikely that you’ll just be stung
once since they hang around in swarms. In 1956 these bees were brought to Brazil in
order to breed a more efficient honeybee. However, this failed and most of the bees
were able to escape. From Brazil the swarms of bees have reached Central America and have
even come as far up as the southwestern U.S. What’s to Fear? Because they are known to travel in swarms,
when a bee attacks a victim, many of the other bees will do so as well. It is said that one
swarm of these bees can take down a horse. The bees have killed about 1,000 people since
they’ve started coming up from Brazil. These bees definitely put a face to the name killer
bees. 4. Kissing bug (Triatomines) First discovered in the 19th century by Charles
Darwin, the kissing bug is an insect that you don’t ever want to come into close contact
with. There are 138 known species in existence. Most of them are within the U.S., with others
scattered throughout Asia, Australia, and Africa. All of the known species are said
to be able to transmit Trypanosoma cruzi, a very harmful parasite that can be fatal.
Most species of the insect are known to live off of vertebrate blood while some are able
to live off of invertebrates. What’s to Fear? The potentially lethal kissing bug is known
to live in the same dwellings as humans, often making their homes on the outside as well
as the inside of our houses. It is said that 45,000-50,000 people die each year from kissing
bug bites. This is because the parasite that the bug carries, Trypanosoma cruzi, is known
to cause Chagas disease, which seems very minute at first but is fatal over. At first
there is just swelling at the site of the bite, but then the disease can lead to intestinal
issues as well as cardiac problems. In fact most of those who die from Chagas disease
die from Chagasic cardiomyopathy. 3. Tsetse Fly (Glossina morsitans) While flies alone are annoying, imagine a
fly that lives by sucking blood from animals and humans. The tsetse fly is found in the
Kalahari and Saharan deserts. This insect is widely studied today due to the disease
that they transmit. The flies look very similar to the normal housefly we all love to swat
at, except for a proboscis on their head, which is the anatomical part that allows them
to suck blood. There are 34 different species of tsetse flies, all of them fitting into
one of the three categories: savannah fly, forest fly, or riverine fly. What’s to Fear? Though a little fly may seem pretty harmless,
the tsetse fly can kill, and do so each year. Most of the deaths are in Africa- it is said
that 250,000 to 300,000 die each year from something known as the sleeping disease (the
numbers are slowly decreasing). The tsetse fly carries protozoa known as trypanosomes,
but so do many other insects. However, when someone is bitten by the tsetse fly, the protozoa
are introduced to the body and cause a disease known as the Sleeping Sickness. If not treated
properly, the disease is able to shut down necessary bodily functions, such as the endocrine
and cardiac systems. Next, the disease enters the neurological system, causing confusion
and an abnormal sleep cycle due to insomnia and slumber. The most recent notable epidemic
of the disease was in Uganda in 2008. 2. Rat Fleas (Xenopsylla cheopis) When thinking of fleas, you probably think
of a tiny insect that has landed on a household cat or dog that causes a lot of itching. Fleas
are often only 1/16 to 1/8 inch long, with a dark colored body and a mouth that is made
to be able to suck blood off of the helpless host it lands on. A flea bite, whether on
your pet or your own body, will often cause a red mark accompanied by a lot of itching.
Though there are different types of fleas that you’d find on a dog or cat, one of
the more deadly fleas is one you’d find on a rat. While rats are pretty scary to most
on their own, a flea-infested rat is even scarier, and is one that needs to be avoided. What’s to Fear? While fleas are often no bigger than the nail
on your pinky finger, they have been known to carry devastating diseases and germs, the
most notable b1eing the Yersinia pestis bacteria. This bacteria is known for causing the death
of nearly three-quarters of Europe’s population during the 14th century. Better known as the
Black Death, this plague killed between 350 and 375 million people and peaked during 1348-1350.
The rats that were often found on merchant ships are said to have spread the disease
and, due to lack of medical information and treatment, the disease spread and spread.
The plague was also never fully wiped out and for years there would be a reoccurrence
of deaths due to the deadly bacteria. While today dying from this bacteria would be rare
in the U.S. and in most places in Europe, in many third-world countries it is very possible. 1. Anopheles Mosquito (Anopheles quadrimaculatus) Once the temperature outside hits a steady
stream of temperatures above 50°F (10°C), you’ll surely start to see those pesky mosquitoes
flying around outside. You are even more likely to see them once the sun begins to go down.
As if dealing with bugs isn’t a nuisance in itself, mosquitoes are a bit more to deal
with, especially if one lands on you and decides to bite. While only female mosquitoes will
bite a human, some of them carry diseases that can be very harmful. There are about
3,500 species of mosquitoes, 200 of those living in North America, many carrying ailments
such as yellow fever, dengue, encephalitis, and even canine heartworm. What’s to Fear? A mosquito has probably bitten you at least
once before in your life, so you’re familiar with the little red bump that may swell and
really itches- nothing a little cortisone or anti-inflammatory skin cream won’t fix.
However, in some cases, a mosquito bite can lead to a lifetime of illness, or even lead
to death. One of the most widely known mosquito-borne diseases today is malaria. It is very prevalent
in tropical countries: there are about 350–500 million cases found each year and about 1-3
million people die from it each year. Malaria is said to affect at least 10% of the world’s
total population. These deaths are usually noted in sub-Saharan Africa where mosquitoes
are very prominent and proper care for malaria is scarce.