A dark spot at the base of the dorsal fin, small mouth, and vertical bars on the sides distinguish them from similar species. Often breeding with other sunfish species, resulting offspring can be ...

The spring pygmy sunfish faces a long list of specific threats, including degradation of water quality, reduction of water quantity, and pollution in the form of pesticide and agricultural runoff.

A giant species of fish that was first discovered seven years ago washed ashore in Oregon last week, according to marine ...