We don’t know for sure, but crying and laughing are both ways that your brain soothes you and reduces stress. Crying while laughing could also just be because your tear ducts are getting stimulated by your face muscles.

It’s an instinct that prepares us for sleep. But you might want to think twice before doing it.

Open this article to get tater taught

Orange you glad you read this article?

Also, why are most plants green anyway?

Thank goodness for dry erase boards

It's pretty plast-uck (but we're working on it)

It’s time for Grass Class.

Evolution really can't be bothered

Arsonists need not apply

We can’t rule out world domination plotting

Pokémon sound effects sold separately

The weather outside is frightful? Not to these plants.

Hint: You’re not actually hitting the bone.

Survival of the fittest? Sloths have taken a different approach.

Lizards do push-ups to show off, display dominance, and regulate heat. So we have more in common with lizards than we think!

These corn-chip-smelling paw pads serve a helpful purpose.

Swipe right for science.

Talk about a scent-sational thrill ride.

A song (almost) no one wants to hear.