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Evolution6654 articles archived since 1845

No Bull: Lizards Flee When They See Red

Western fence lizards are more spooked by red and gray shirts than they are by blue ones—perhaps because the males have blue bellies themselves. Christopher Intagliata reports.

August 9, 2017 — Christopher Intagliata

Cold Snap Shapes Lizard Survivors

An epic bout of cold weather quickly altered a population of lizards—an example of natural selection in action. Christopher Intagliata reports.

August 3, 2017 — Christopher Intagliata

Well-Preserved Armored Fossil Reveals Cretaceous Camouflage

The Cretaceous Period was a dangerous time for many animals, even for the “dinosaur equivalent of a tank.” Watch how researchers analyzed the pristine remains of a heavily armored nodosaur to discover this dino’s additional layer of defense.

August 3, 2017 — Andrew Golden

Screams Heard Round the Animal World

Humans appear well equipped to recognize the alarm calls of other animals—perhaps because sounds of distress tend to have higher frequencies. Karen Hopkin reports.

July 31, 2017 — Karen Hopkin

This Caterpillar Whistles While It Irks

The North American walnut sphinx caterpillar produces a whistle that sounds just like a songbird's alarm call--and the whistle seems to startle birds. Christopher Intagliata reports.

July 28, 2017 — Christopher Intagliata

The Shark That Conquered the Whorl

Journalist and author Susan Ewing talks about her new book Resurrecting the Shark: A Scientific Obsession and the Mavericks Who Solved the Mystery of a 270-Million-Year-Old Fossil. (And we'll discuss how Helicoprion is not technically a shark, but it's really close!)

July 21, 2017 — Steve Mirsky
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