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 ...

The old idiom of being a fish out of water is never a positive thing. Instead, it paints a picture of being uncomfortable or ...

In the fascinating world of aquatic life, some species possess an extraordinary ability: they can breathe both underwater and ...

Fish need oxygen, the same thing we breathe. But to get it, fish have to do some work. Luckily, water contains oxygen (that's the O in H20).

However, fish have it much harder. To breathe, fish have to remove dissolved oxygen molecules in the water using their gills, according to the Iowa Department of Natural Resources.

The fish appeared to hold their breath while inflated, keeping their gill flaps closed and neither bringing oxygen in through them nor passing waste out. A pufferfish, then, ...

Moreover, the fish breathe with their gills when puffed up, which means they can breathe as they always do, even when they inflate to the size of a football.

These fish aren't harmful to humans, but they can overhunt areas where native fish live, harming the local ecosystem. The U.S. Geological Survey notes that a mature female can carry up to 50,000 ...

As government engineers work to keep the nation's fourth-busiest seaport from losing its competitive edge, they are also planning what amounts to a massive science project to ensure fish in the ...

An invasive fish has been marked for death in Georgia. The Georgia Department of Natural Resources' Wildlife Resources Division confirmed someone found a northern snakehead in a pond on private ...