Keith Kloor

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The Law of Unintended Consequences

Darwin's evolution illustration

Learn how it was framed as a battle over the teaching of evolution, but the participants didn’t see it quite that way.

Looking Back at the Scopes Monkey Trial Nearly 100 Years Later

This nematode is part of the clade Ecdysozoa, the subject of new research on animal nervous systems. (Credit: shoma81/Shutterstock)

Nematode ecdysozoa

Learn about the wide-ranging Ecdysozoa group of animals and how scientists solved the curious case of their nervous systems' structure. 

Fossils Solve a Nervous System Mystery in Molting Animals 

An artist’s rendering shows how Ahvaytum bahndooiveche may have appeared in a habitat dating to around 230 million years ago. (Credit: Gabriel Ugueto)




Illustration of Ahvaytum bahndooiveche dinosaur

Learn more about this newly named dinosaur and how it's discovery sheds light on dinosaur evolution.

Newly Identified Dinosaur was the Size of a Chicken and May be Oldest in North America

Graphic showing functional optimality drives repeated evolution of extreme saber tooth forms (Credit: Tahlia Pollock)


Graphic showing functional optimality drives repeated evolution of extreme saber tooth forms

Learn how a variety of tooth shapes drove evolution across multiple kinds of mammals.

Saber-Toothed Biting Analysis Shows Evolution Across Carnivorous Mammals

2024-medical-supplies

Discover the new planets, moons, health advances, and ancient history uncovered in 2024. 

9 of the Most Remarkable Scientific Discoveries of 2024

Neanderthal and human skull

Learn how scientists examined DNA to find out the duration of Neanderthal-human interbreeding and track down the Neanderthal genes that humans inherited.

The Law of Unintended Consequences

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