Tyler Santora

The disease malaria appears to have influenced blood type prevalence.

Different ants emit different smells. Here's why.

Here's why your cat or dog might be rubbing its butt on the floor.

Here's what it's like inside a kangaroo's pouch, where joeys can live for up to one year.

Here's why wisdom teeth usually don't come in until the ages of 17 to 21.

Can rabbits grow horns, as the legendary jackalope does?

Here are some theories as to why cold air helps get rid of nausea.

Here's why back pain is so universal among our species.

Most people do not breathe equally from both nostrils and tend to have a dominant side.

Grinding our teeth damages them, so why do we do it?

Societies have lived underground before, sometimes for weeks at a time.

Here's the highest temperature and humidity level that people can tolerate.

Women tend to outlive men because of biological and social factors.

Why do humans blink so much?

Can animals that live in the water suffocate?

What role do our eyebrows and eyelashes play?

There are a few possibilities for why small dogs can be so menacing.

Why aren't humans covered in dark, scruffy body hair, like apes are?

Will it help if you've trained at the North Pole?

Snakes have anatomy that helps them hear, you just can't see it when they slither by.

What steps can night owls take to become early birds?

Cats have swinging "pouches" on their bellies, but that doesn't mean they're fat.

What prompts this lightning-like energy in pets?

Why do people breathe so loudly when they're asleep?

Is it possible to be allergic to activities like running or walking?