Water temperature plays a vital role in the behavior and survival of fish. Being cold-blooded, fish rely on external temperatures to regulate metabolism and activity. Even small changes in temperature ...

At the time, I had caught more than 25 northerns that exceeded 40 inches from Wanahoo, rivaling some of the best I had hooked on Canadian and Minnesota Boundary Water lakes famous for holding giant ...

"Fish out of water" usually means someone who’s totally out of place. Some fish didn’t get the memo. For Saturday’s Weird Animal Question of the Week, Ving Salcedo asked what type of fish can live ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Cold-water fish are losing their habitats in temperate lakes due to a ...

When water temperatures get too hot, fish can become stressed or even die. In rivers, Atlantic salmon and other cold-water species sometimes escape the heat by flocking to cooler areas, which often ...

Most assume that cold water is deadly for fish. The truth is, nature has incredible exceptions. In polar oceans and snowy lakes where temperatures hover near freezing, certain fish actually thrive ...

To keep your fish healthy and happy throughout their life, you need to understand how and why to change your fish tank water. There are thousands of fish breeds, and each one requires different care ...

The deft wrigglings of fish forced to grow up on land could offer a glimpse of how ancient vertebrates started to make the big move out of the sea. The modern fish species called Senegal bichir ...