When you buy through links on our articles, Future and its syndication partners may earn a commission. The human outer ear may have arisen from ancient fish gills. | Credit: A. Martin UW ...

When you and I take a deep breath, we pull air into our lungs. That’s because humans are mammals. But fish aren’t mammals. They usually don’t breathe air. They usually don’t have lungs. That’s what I ...

How do fish breathe underwater and the differences between gills and lungs. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Like humans, fish ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Some teenage Japanese eels have found a way to avoid becoming a fish ...

Imagine you’re a Japanese eel, swimming around just minding your own business when—bam! A predatory fish swallows you whole and you only have a few minutes to make your escape before certain death.

A collaborative team of scientists recently found that there is no physiological evidence supporting a leading theory -- which involves the surface area of fish gills -- as to why many fish species ...

SAN MARCOS— 2021 wasn’t a good year for the San Marcos gambusia, the tiny fish that called the San Marcos River home but was declared extinct in September by the U.S. Fish and Wildlife Service. But a ...

Why do you think giraffes have such long necks? It’s a question that has perplexed scientists for years. Do you think giraffes have long necks to reach food in high places? Maybe you are onto ...