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.
What Really Happened to the Megafauna
Could humans be responsible for the extinction of megafauna like giant sloths and mastodons?
A Brief History of Skis
Researchers tested various ski designs dating back 4,000 years to understand how human movement on snow has evolved.
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.
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.
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.
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.
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.
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.