When the people that discovered the platypus presented the anatomical structure to the association that decides the naming of animals, they thought it was a joke. I like to imagine that after they thought it was a joke, he brought in a live specimen and placed it on the table and they're like, "Oh, that's funny. You made a little doll." And then it started moving and you're like, "Oh, what the [hell]?" And the guy who brought it in was like, "Watch out, his ankles are poisonous". And then they were like, "What the [hell] did you just say?"

Crocodiles absolutely shouldn't be able to climb trees. You're right, they shouldn't be able to. But they do it anyway, like this guy. What the [hell] is he doing up there? There's like basically no video recording of a crocodile starting at the ground and then climbing to the top of a tree. Because it's just one of those things that just appears in front of you. Like, you don't see it happen. All of the reports of this behavior and crocodiles were taken right then and there, as soon as they saw it. There's no telling when a crocodile is just gonna decide to climb a tree right in front of you. There's also not really a practical way of recreating this behavior, because if you were to go up to it and poke it with a stick, it would retreat into the water, not up to a tree, and you're not very likely to see it in a tree that's covered by leaves because the main reason they do this is just the bathe in the sun.

Hippos are responsible for about 500 human deaths a year. They are way more likely to kill you than a crocodile. And they like to fling their [poop] at each other because they think it's funny.

In places like Brazil, Australia and where I'm from, Texas, it is possible for millions of spiders to rain from the sky.

Sand tiger sharks are usually pregnant with about 100 babies, and in the womb, before the babies are born, they kill and eat each other until there's only like a couple left.

When you die, your eyeballs will deflate and just become floppy little sacks that sit in your skull.

Female penguins. If their baby dies, they'll probably go up to another female and just steal its baby and be like, "This is my child now."

Within their lifetime, the average person will interact with about 30 to 36 people who have killed someone.

It's estimated that around this area of Mount Everest, there's about 150 to 200 dead bodies just scattered about.

Did you know that this is how pandas [pee]. This is what male pandas do to say that "this is my tree now."

If you have any pets, like a cat, a hamster, a dog or a raccoon, if you die and no one finds your body, they're most likely going to eat your corpse.

If you ever work in a morgue, it's very likely that it will seem haunted. 'Cause from time to time, gas will release from a corpse which will sound like either whispers, someone talking to you, or if it's released in the right way, sound like distant screaming.

There are thousands of deaths that occur each year as a result of a doctor's [bad] handwriting.

In 1933, this Japanese woman on the island of Oshima threw herself into a volcanic crater. And after that happened and it hit the news, within the same year, 1,000 more people threw themselves into the crater. I didn't find out if it was active or not, but if it was, that would be the dumbest and most semi-slow, painful way to die, because it's like mixing suffocation with burning to death.

When a camel pees, its urine is as thick as maple syrup.

If you were to shine a UV light on a platypus, it would glow, not because it's covered in semen, but because it has a biofluorescent property, like a lot of Australia's species. And just like Perry the Platypus from 'Phineas and Ferb,' they actually glow green. That's not why he's green. That's just a coincidence.

Did you know that 40% of your body is just foreign entities like bacteria and fungus.

The odds of a death row inmate being found innocent after their execution is 1 in 25.

There is a species of spider that is so small that it's about the width of this three-millimeter pencil. So there could just be a ton in your nose and your ear and your eyes and you have no idea.

There is basically a 100% chance that there's a spider in your house at any given moment.

Research has shown that some spiders grow larger than normal the more populated a city is.

Some species of spider, the male has a detachable penis, so when they mate, they'll just leave it inside. Other species of spider mate by making a bag out of webbing and then putting their sperm in it. And then they like stuff it in or throw it in.

Koalas actually have fingerprints and they're very similar to humans'. They also have chlamydia.

3% of the ice in Antarctica is just penguin [pee].

Certain species of spider, like the brown recluse, the way their venom works is that it makes your blood cells explode.

Another thing about corpses. If you put them in a coffin that's sealed tightly enough, there's a very good chance it will explode.

It's possible after you die to become fully erect afterwards.

If we were to think of SpongeBob's genitalia as the same as humans', then a sea sponge could either be born with a penis or a vagina, both at the same time or a mixture of both. What does a mixture of both mean? I don't know. It sounded scary. I didn't look into it. And if SpongeBob had female reproductive organs, what he could do is just go around swimming, just throwing his eggs out from his uterus until it hits a male in the face. And hopefully that male decides, "oh, I'm going to reproduce." The reason that sea sponges do these methods of mating is because they don't have a brain to think of anything else. SpongeBob wouldn't have a brain, a skeleton or any internal organs. He would just be a thing that floats around, eating somehow, while making sperm and eggs. I want you to think of this if you ever go diving in the coral reef.

If you were to die in the woods, then it's very likely that a deer would eat your body. And if they find a nest of like baby birds, they'll just eat the baby birds, even though they can't really eat meat properly. They just do it 'cause they're stupid.

The FBI says that there is between 1000-3000 active serial killers within the US.