A new study theorizes that evolution ticks at different speeds, especially when a big group of organisms first appears.

Red blood is the exception, not the rule. Evolution has painted it green, purple and white in animals that push physiology ...

Animals have evolved crab-like bodies at least five times throughout history, a process known as carcinization.

In his new National Geographic series Pole to Pole, the actor ventures deep into the Amazon in search of creatures whose ...

With copper-blue blood prized by modern medicine and a body plan older than dinosaurs, the horseshoe crab reveals how ancient ...

One of the biggest quests in biology is understanding how every cell in an animal's body carries an identical genome yet still gives rise to a kaleidoscope of different cell types and tissues. A ...

Avowed dead animal enthusiast Robert F. Kennedy Jr. has taken up the cause of preventing animal cruelty. The health secretary, 71, joined his fellow Cabinet members—minus puppy killer Kristi Noem—to ...

Joel McHale as Frank standing with a uniform and vest on in front of a crowd in Animal Control. Image via FOX After nearly a year of waiting, it's almost time to return to the Northwest Seattle Animal ...

In most narratives, the story of evolution is the story of organisms emerging from the ocean and eventually populating the land. But for some species that evolution also involved a return trip. Dozens ...

Some animals run, others fight, but the weird ones perform. This journey through the animal kingdom highlights the most unexpected survival strategies, revealing how deception, disguise, and pure ...

Max Telford does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Editor’s Note (10/8/25): This podcast was edited after posting to remove some incorrect descriptions of research on crickets in Hawaii. Rachel Feltman: For Scientific American’s Science Quickly, I’m ...