What noise does a fish make? New tool reveals the answer
For decades, ecologists have listened to the underwater world using sound recorders.
These devices capture rich soundscapes filled with cracks, snaps, and thumps, most of...
Amazon trees are growing bigger as CO₂ levels rise
The trees of the Amazon rainforest are getting larger, and scientists believe rising carbon dioxide levels in the atmosphere are the reason why.
A new...
Scientists find way to grow more nutritious rice with less fertilizer
Rice is the daily staple for more than 3.5 billion people around the world, but producing it comes with huge costs to the environment,...
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...