A new study supports a theory first proposed by Charles Darwin.

BIOLOGY
It's the second "city" of gloomy octopuses (octopus tetricus) discovered in the area. Maybe they're not so gloomy after all.
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.
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.
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.
Without this crucial joint, many daily activities would be impossible.
Your stomach may very well be a key player in keeping your mood balanced.
3. Once a year, have a professional look at it.