Fish are able to excrete unwanted compounds (such as salts and nitrogen-containing ammonia) via the membranes of their gills ...

Researchers have used camera technology combined with artificial intelligence to monitor and analyze the breathing rates of ...

The giant freshwater stingray may be the world’s largest freshwater fish. It’s also cloaked ... in sandy or silty river bottoms. They breathing through holes, or spiracles, on the top of ...