biology

It’s not just fear or worry.

It's hard to pick a favorite from these off-the-wall studies exploring topics like whether cats can be both solid and liquid, the physics of walking backwards with coffee, and the brain activity of people who are grossed out by cheese.

This is one of only three known white-giraffe sightings.

This mysterious little body part is a surprising source of controversy among researchers.

Smoking can cause breasts to droop, but breastfeeding doesn't.

Unable to run away, plants have developed some vicious defense mechanisms.

Keystone Features / Stringer / Getty Images

Alfred Kinsey forever changed the way we think, and talk, about sex—partly by asking more than 18,000 men and women deeply personal questions about their most intimate habits.

Though you might not often think about them, lymph nodes are crucial for your immune system.

At its largest point, the sciatic nerve is about as big around as a man's thumb—plenty big enough to be an important part of the nervous system.

Let's go for the jugular.

It's not your sweat that stinks.

Rising to the top of the pecking order is impossible for them.

Did you know opposable thumbs may have played a role in the development of language?

PierreSelim, Wikimedia Commons // CC BY-SA 3.0

One hundred European starlings released in Central Park in 1890 have turned into 200 million across the U.S. today. Now scientists are looking into their genetic diversity.