Why Cockroaches Are So Hard To Kill


– [Narrator] You might not
want to think about this, but over 3500 species of cockroaches live on this planet. The good news? Only about 30 of those species have adapted to live around humans. The bad news? 30 species of cockroaches
can live around us! Roaches are one of the most
common pests in the US. So it’s no surprise that humans are always trying to kill them. But no matter how many
times we stomp them, squash them, and bomb
them with toxic chemicals, these pesky pests always seem
to pop up time and time again. So what’s going on? Let’s take a closer look at the roach you probably know better than you’d like. Periplaneta Americana. Aka, the American Cockroach. But this name is misleading. This guy is actually
from Africa, not America. It made its way to the US by infesting boats in the 16th century, and it’s been spreading to
almost every corner in the world ever since. It turns out, it’s one of the largest
species of cockroach around. But that’s not the only
big thing about it. New research has revealed
that it has a massive genome. One of the largest of any studied insect. And may of these genes are
exactly what make this roach a master survivor. Let’s start with the genes associated with something called Chemoreception. That’s how roaches smell
and taste their environment. Turns out they’re actually way better at sniffing out and eating
food than most other insects. The American roach has 154
olfactory receptors for smell, and 544 gustatory receptors for taste. More than any other insect on the planet. As a result, these cockroaches
are not picky eaters. Sure, they like cheese, meat
and sugar like the rest of us, but they’ll also go for
things like cardboard, book bindings, human
toenails, rotting meat, blood, excrement, and even each other. That’s right, these
roaches have been known to eat other dead or crippled cockroaches, all in the name of survival. It sounds gross, but this diverse diet makes it easy to find a
meal just about anywhere, even if it’s poisonous to most animals. This roach has a bunch of
genes called Cytochrome P450s, which help it withstand
poisonous chemicals, like peppermint. These genes code for
detoxification enzymes, which keep the insect safe. On top of that, this roach has
a super-strong immune system that seeks out and kills
harmful microbes and fungi, making the most unsanitary environment look like a five-start hotel
to the American cockroach. Not gross enough yet? Well consider this. Cockroaches can live nearly
a week without their heads. Yeah, that’s not a myth. They don’t have a highly
pressurized network of blood vessels like humans,
so they don’t bleed out. Instead, their necks actually
seal off the opening. They can’t regenerate a whole head, but roaches to have an impressive set of regenerative superpowers. For up to the first two years of its life, the American roach goes through a series of regenerative molts as
it matures into an adult. During a single molt stage,
it can replace lost limbs. And over a series of molts,
it can regrow antennae and even its eyes. Roaches may be hard to kill, but there’s an easy way to keep
them clear of your kitchen. Cleanliness. A roach just won’t survive
in unsanitary conditions, it actually enjoys it. Its heightened senses mean it actually relishes rotting food. So, store food in airtight containers. Cover trash bins, and
keep your basement dry. It might also be smart to
plug holes in your walls, unused electrical outlets,
and especially drains, since get this, roaches can use your plumbing
to climb up from sewers into your bathroom sink. It might not eliminate the risk entirely, but it can’t hurt, and it will certainly
make you feel better. However, we can’t promise
it will keep them out of your nightmares. (dramatic music)

100 thoughts on “Why Cockroaches Are So Hard To Kill

  1. Me: going to my kitchen peacefully at 1:54 am
    Cockroach and his boys: IM BOUTTA END THIS MANS WHOLE CAREER

  2. Hi, my name is Sarah Slimeball. I was the victim of criminal medical malpractice and prescribed Diane-35 the same day the tax office or ATO, spelt like Blattodae, issues my tax file number. I was raped within hours while the names from the Bible were read in chronological order.

  3. DAMN just imagine in the future we implement all kinds of genes from other animals into humans and then we'll be immune to all kinds of poison and disease etc.

  4. “We can’t promise it’ll keep them out of your nightmares” well thanks I guess I just won’t sleep tonight 😪

  5. It’s night time and I just saw a three inch cockroach crawl on my wall in my room to my moms room and know I’m worried for her 😭😰😖😣 I’m scaredy

  6. I can handle the voice saying the details, the animations with the sound effects make me shudder though.

  7. roach on my bed the other side of my bed

    Me:kills it

    Me:I'm not laying in that side again

    Few minutes later

    Also me:lays on the side that i killed the roach

  8. cockroach: ded
    me: hahahahaha
    cockroach: (calls his arny) COME AT ME!
    me: machine gun bug spray time!
    cockroach: RUN RUN RUN! (STARTS FLYING)
    ME: MORE BUG SPRAY!!!!

  9. My dad: im not afraid of anything.

    Sees that the roach has wings

    Him again: Oh shit, get the broom, get the broom!!!!

  10. Title: why cockroaches are so hard to kill

    Me: sees one on the floor, and steps on it meh, I guess it wasn’t that hard to kill.

  11. Once I was watching Avengers: Age of Ultron at 3 AM and a cockroach was on my leg and I jumped off the bed, I covered him so he doesn't run and then I woke my mom to kill it. After, I closed Avengers and just slept in the sleeping bag position so none cockroach kills me.. Weird.

  12. me seeing a cockroach pfft I could kill u on a second turns away * look backs *cokroach starts flying toward me Screams so load everyone comes *

  13. God: I’m gonna send down beautiful creatures to earth.

    God: inserts 3,000 cockroaches

    Me: Realised most were flying roaches

    Me: oh. Ok.

    Me: grabs Le gun*

    dies

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