It takes years for kids to figure out how to spit — but it's an important skill. (Photo: Getty; illustrated by Nathalie Cruz) There will no doubt come a time when your child spits more than you'd like ...

Hock a loogie and you’ll see it — that slimy, bubbly, lovely liquid known as spit. A complex fluid known in more refined circles as saliva, the initial benefits of spit may seem obvious. Spit ...

"Don't Spit! It is indecent. It is dangerous. It is against the law. It Spreads Disease." In the late 19th and early 20th centuries, public admonishments like this one from the Anti-Tuberculosis ...

Let’s just get this out of the way: Frogs are cool. They jump. They thrive in water and on land. And their tongues are capable of sticking to bugs like glue—even ones heavier than they are. And now, ...