The world’s smallest dolphins dive 120 meters and roll to catch prey
Hector’s dolphins, the world’s smallest marine dolphins, are only about 1.4 meters long, but new research has revealed they are far more acrobatic and...
What owning a cat does to your brain (and theirs)
Cats may have a reputation for independence, but emerging research suggests we share a unique connection with them—fueled by brain chemistry.
The main chemical involved...
Sharks now roam the open ocean. But for 200 million years, they only lived...
When you picture a shark, you probably think of a large, powerful predator cruising the open ocean.
Species such as the great white shark, tiger...
Ghost sharks grow forehead teeth to help them mate, study finds
Deep in the ocean, there lives a strange group of fish called ghost sharks, or chimaeras, which are distant relatives of sharks and rays.
These...
Ocean acidification damages shark teeth from root to crown, study finds
Sharks are famous for their teeth. Unlike humans, they never run out—when one tooth falls out or wears down, another quickly takes its place.
This...
What the end of greyhound racing means for all dogs
For decades, greyhound racing seemed untouchable.
Despite repeated concerns about high injury rates, doping scandals, and uncertainty over what happens to dogs once they leave...
Seabirds avoid pooping on water—here’s the surprising reason why
On remote desert islands in Japan, researchers have discovered an unusual bathroom habit among seabirds.
Streaked shearwaters, a species of seabird, prefer to poop while...
Pets don’t necessarily improve their owners’ well-being
People often turn to pets to boost their mood and find companionship.
Improving well-being and reducing loneliness are among the most cited reasons for adopting...
Early primates thrived in cold climates, not tropical jungles, study finds
For decades, scientists believed that the very first primates—the ancient ancestors of monkeys, apes, and humans—evolved in lush, warm tropical forests. But new research...
How huge meat-eating dinosaurs hunted in unique ways
Not all giant, meat-eating dinosaurs had the same kind of bite.
A new study has revealed that while the famous Tyrannosaurus rex had a skull...