conodonts

The Most Abundant Creature You’ve Never Heard Of

Conodonts are actually older than the oldest previously known vertebrates, making them the earliest known “skeletonized” vertebrates in existence.
Yaxchilán, Maya ancient city

Why Civilizations End

Scientists studying fallen civilizations suggest that the culprit is overshoot in combination with climate change. What does this mean for our current era?

Do Dolphins and Orcas Really Kill Their Young?

Stunned marine biologists watched a young mother orca desperately trying to save her baby.
herd of mammoths

What Really Happened to the Megafauna

Could humans be responsible for the extinction of megafauna like giant sloths and mastodons?
Close-up of a mans legs doing cross-country skiing in the Alps.

A Brief History of Skis

Researchers tested various ski designs dating back 4,000 years to understand how human movement on snow has evolved.
A wild dingo

The Unexpected Result of Australia’s Dingo Fence

The story of dingoes in Australia is the first recorded case where an introduced predator has taken on such a functional role in its adopted ecosystem.
Red snapper chromolithograph 1898

Fish Are Smarter Than You Think

Fish intelligence? Yes, many studies have documented the ability of fish to learn from their environment. Fish exposed to a more complicated environment have an edge in learning.
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.