Which is which?

JIMMY Z: Look the same to me.

It's a trick question.

Nope, that's a crocodile.

And that's an alligator.

Nope, that's a croc and that's a gator.

Nailed it, bro!

KOKI: Oh, yeah?

How do you know?

Um, I don't know how I know, I just know.

It's, uh, kind of obvious... isn't it?

Nuh-uh!

Negativo!

How is that obvious?

JIMMY Z: Yeah, they just look like two giant lizards.

They're not lizards.

They're both in the Family Crocodilia, but one's a crocodile and one's an alligator.

We can show you the differences.

I'll take the alligator.

I've got crocodile.

Alligators are gray to dark gray.

Crocodiles are olive green or brown.

Alligators have wide, rounded snouts that are U-shaped.

Crocodiles have long, pointy snouts that are V-shaped.

An alligator's bottom teeth are inside his mouth.

A crocodile's bottom teeth stick out of his mouth.

Alligators are really big, growing up to 16 feet long.

Crocodiles grow even bigger, up to 20 feet long.

So they look different, but why?

Why do they have those differences?

Yeah?

Why are they different at all?

Well the alligator and the crocodile look different because they're different species, and they are different species because, uh... well, naturally because... uh, I think...

Here, I'll take this one Chris.

The reason crocodiles and alligators are different is-- Oh... hmm.

Ah, why are they different?

They are different because, ah, I don't know.

But one thing I do know is that we've stumbled upon today's creature adventure.

We've got to answer the question: why are alligators and crocodiles different?

Hey, yeah!