Chimpanzee

The Complexity of Animal Communication

Alarm calls truly display the complexity of animal communication. Chimps tailor their warning communications based on the knowledge level of the recipient.
Juvenile American Eel

The Final Migration of the American Eel

Every year, thousands of American eels make an amazing migration from their freshwater homes into the Atlantic Ocean, where they spawn and die.
Crow illustration

Crows Are Even Smarter Than We Thought

If crows like the New Caledonian Crow can plan out and create a specialized tool, then they seem to have smarts that rival those of early humans. 
Science of ticks

The Science of Ticks

A mild winter and abundant mice have led to a bumper crop of ticks this year, and with them tick-transmitted diseases including Lyme disease.
Tasmanian Tigers

Is The Tasmanian Tiger Really Extinct?

A team of researchers is making one last attempt to find a living Thylacine, or Tasmanian Tiger, 30 years after its official disappearance.
Jellyfish bloom

The Global Jellyfish Crisis in Perspective

Are the increasing jellyfish blooms in our oceans the result of global temperature changes?
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?