Goldfish possess genetic traits that allow them to swell up to four pounds—the size of a Chihuahua. Experts say that's why ...

We can be guilty of thinking that oxygen is a uniquely human need. While all land-dwelling animals breathe oxygen from the ...

What does one man do when a softshell turtle invades his koi pond? Watch the fascinating video as he guides the turtle back ...

The water clarity allows you to look into the water and see the stony bottom, and a small, striped fish darting between the ...

Researchers observed a number of surprising behaviors by the ivory-sporting whales during an expedition with drones in the Canadian High Arctic.

A fish declared extinct in one state in the 1980s has been resurrected, with hundreds reintroduced to the wild in a major ...

An invasive species is an introduced non-native organism that begins to spread or expand its range from an original ...

The fish doorbell went live for the first time in 2021 to help fish like bream, pike, and bass make their spring migration through the waters of Utrecht to find a suitable place to lay their eggs.

U.S. Fish and Wildlife Service wants people to eat more invasive species. You can get nutria, wild pigs, carp and northern snakeheads in Mississippi ...