How Long Do Betta Fish Live? Betta fish live an average of 2 to 5 years in captivity. The average lifespan of bettas is three years, though some pet owners claim that their betta fish live beyond ...

A Yellowfin cutthroat trout preserved at the Smithsonian Museum of Natural History. Colorado Parks and Wildlife Biologists are on a quest to find a “zombie fish” in Colorado.

A few fish defy the norm and live up to 10 years of age, according to Spruce Pets. A betta fish's lifespan can be impacted by the care it receives, WebMD reports.

In a small river of South Africa, a "long"-headed creature swam through the water with several other animals. Its ...

The potential existence of the extinct yellowfin cutthroat trout, a fish breed that was discovered in July of 1889 by David Starr Jordan and G. R. Fisher in the Twin Lakes near Leadville, is now ...