biology

7 Surprising Facts About the Chin

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

Why Don't You See Great White Sharks in Aquariums?

It's not for a lack of trying.

7 Surprising Facts About the Breast

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

How Plants Fight Back Against Predators

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

Keystone Features / Stringer / Getty Images

10 Surprising Facts About Alfred Kinsey

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.

10 Facts About Your Tonsils

You might think they're unnecessary, because so many people have had their tonsils removed—but tonsils actually serve an important role in your immune system.

11 Interesting Facts About Lymph Nodes

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

13 Facts About the Sciatic Nerve

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.

11 Striking Facts About the Jugular

Let's go for the jugular.

IMAGE CREDIT: Sérgio Valle Duarte, Wikimedia Commons // CC BY 3.0

Scientists Say American Sperm Counts Are on the Decline

Let’s not panic just yet.

13 Surprising Facts About the Armpit

It's not your sweat that stinks.

Why Male Hyenas Have It Worse Than Females

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

11 Facts About the Thumb

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

PierreSelim, Wikimedia Commons // CC BY-SA 3.0

Scientists Study the Starling Invasion Unleashed on America by a Shakespeare Fan

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.