evolution

Why do we have hair in such random places?

Can you be awake and asleep at the same time?

Why monkeys (and humans) are wired for fairness

The most colorful gemstones on Earth

Why do you get a fever when you're sick?

Is human evolution speeding up or slowing down?

The fish that walk on land

Evolution's great mystery: Language

No one can figure out how eels have sex

The hidden history found in your teeth

Why do humans have a third eyelid?

Your body was forged in the spectacular death of stars

Claws vs. nails

Lessons from fungi on markets and economics

The dust bunnies that built our planet

The mysterious origins of life on Earth

How do viruses jump from animals to humans?

How turtle shells evolved... twice

A brief tour of the last 4 billion years (dinosaurs not included)

There may be extraterrestrial life in our solar system

How do crystals work?

The lovable (and lethal) sea lion

This ancient rock is changing our theory on the origin of life

The Aztec myth of the unlikeliest sun god

How animals and plants are evolving in cities

The fascinating (and dangerous) places scientists aren't exploring

After billions of years of monotony, the universe is waking up

The amazing brains and morphing skin of octopuses and other cephalopods

Grief and love in the animal kingdom

A brief history of dogs

How tall can a tree grow?

An evolutionary perspective on human health and disease

The sexual deception of orchids

Sloths! The strange life of the world's slowest mammal

Why can't some birds fly?

History through the eyes of a chicken