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...
Your dog can read your mind—sort of
Your dog tilts its head when you cry, paces when you're stressed, and somehow appears at your side during your worst moments. Coincidence? Not...
Wolves on the move: Yellowstone packs carry tiny pups to follow elk migration
Gray wolf pups are born helpless—blind, deaf, and without the strong sense of smell that helps adult wolves survive.
Normally, these pups stay safe inside...