biology

There's a lot more than estrogen and testosterone.

Mouse cells riding aboard the science satellite SJ-10 reached the blastocyst stage last week.

He majored in physics and philosophy and managed to apply them both to his decades of historic work.

And that gene just so happens to be called "sonic hedgehog."

Being cold depletes an animal’s energy reserves and immune system.

It’s so much more than baby food.

Some populations of lowland leopard frogs in Arizona have gene variants that protect them from a deadly fungal disease.

9. Righties tend to give higher ratings to objects on the right side of a page.

Science is a little stumped by this one.

The collection dates back to 1892 and contains around 20 million specimens.

This is life at its most minimalistic.

BPA-free plastic products may not be safe as you think.

One cell of this fish can express one of 5000 possible shades.

The organism has evolved to consume a plastic that's otherwise non-biodegradable.

Only about 10 percent of people are left-handed. If you’re one of them, you're part of a rare and special group.

The discovery may change the way the infections are treated.

"Wandering gliders" fly thousands of miles to mate.

Wearable tech that doubles as a fun learning tool.

At only 3 inches long and weighing about 60 grams, the uterus isn’t a flashy, attention-grabbing organ. But it is pretty amazing.

You wouldn't want to bump into this guy on a midnight swim.

Proof that it only takes a second for alcohol to totally mess with your body.

Tropical slipper limpets are pretty unremarkable—until it's mating time. Then things get interesting.

The fecal samples taken from hibernating bears were less diverse than those of their counterparts.

Getting rid of excess heat is complicated when your body is covered in insulating feathers. Here's how hummingbirds do it.