P-S! Hey, smarty pants. I'm on my way to a family reunion. Not my family. A family of animals. Not that my family can't act like a bunch of animals sometimes.

Hey, get your paws off my meat cake. But no, this family reunion is actual animals. And I wasn't actually invited.

I'm sneaking in.

But that's okay.

Some of these animals can be pretty sneaky too.

See if you can guess what group these animals all belong to.

Here's a hint.

Their eyesight isn't very good, which should help

me crash the party. Oh, and this animal group makes up 40% of all mammal species. In fact,

there are so many different kinds of this animal group, experts argue over how to categorize them.

But everyone agrees there's at least 2,200 of them, and their primary characteristic is teeth that never stop growing.

Nah on that.

So, did you guess it yet?

Well, you're about to find out.

Welcome, I'm Hammy Hamster, representing the Kreisitini subfamily, and this is Jervis, my gerbil

cousin of the Gerbil Eni family.

Isn't she adorable?

Waste just a few ounces.

And you, sir, can I get you a name tag?

Sure. I'm the trusting narrator of the trust-us-narratee subfamily.

Ah, very good. You look like one of us. Not that my eyesight's very good.

Here you go. Chewing sticks are up front and the wheel is set up in the back.

...