American Pika

The World’s Cutest Mammal on the Brink

The Ili Piku, aka "Magic Rabbit," of China is endangered. But Pika populations are declining globally, not just in China.

Why Does Menopause Exist?

What is the point of menopause? Evolutionarily speaking, why do female humans go through menopause and then live for many more decades?
Giant Squid attack

Giant Squid, Giant Secrets

Very little is known about the giant squid, which surely has added to the strange creature's mystique.
Iguanodons, Megalosaurus and Heliosaurus

Dinosaur Brains And Other Unusual Fossil Finds

How can anything besides bones remain from so many millions of years ago?
Two Hummingbirds and an Orchid

Are There “Transgender” Proclivities in Animals?

We tend to think of gender expression as uniquely human. But many species gain advantages by projecting an opposite-sex appearance.

The Curious Science of Animal Personalities

Any pet owner can tell you that different pets have different personalities, but actually measuring personality in non-human animals is a challenge.
frigate bird

The Astounding Adaptations of Long-Distance Flyers

Frigate birds are truly champion fliers. The birds can fly for weeks without stopping. How do they do it?
altruistic marmot

Why Do Animals Share?

Natural selection should weed out the do-gooders and leave only egoists, but animals share just the same.

No, Trophy Hunting Won’t Protect Wildlife

Killing wildlife to save it isn't a viable strategy. We can create diverse, self-sustaining ecosystems without trophy hunting.

Who Needs Mitochondria Anyway?

Mitochondria was once thought to be an integral part of all complex organisms. Then this organism was discovered.