This 375-million-year-old fish, the closest known relative of the ancestors of limbed animals such as humans, likely evolved ...

While exploring under a dock, I discovered a mystery fish that looks like it belongs in an aquarium but I’ve never seen ...

While it's very true that, as the great Ian Malcolm once said, "life finds a way," that way can sometimes veer quite far off ...

The aquarium reported that the dead fish was 6.9 feet long, which is considered average in size. Mola mola can grow up to 10 feet long and weigh as much as 5,000 pounds.

In a weird and wacky finding, scientists have discovered the limit to how many times a strange fish can have sex in a single day. These fish, named medaka or Oryzias latipes, were found to be able ...

Oddly-colored catfish that are considered rare in other parts of the nation are being caught much more frequently in a Kansas lake and a team of biologists are trying ...