University of Missouri researchers have shown how an all-female fish species called the Amazon molly defies the long-held ...

Lund University. Understanding how species evolve is one of the most fundamental questions in biology. In a new study, ...

The tiny Amazon molly (Poecilia formosa) has always fascinated researchers because, according to the rules of evolution, it shouldn't have survived as a species, let alone thrive as a species for over ...

The following is a news release from the Idaho Fish and Game. BLACKFOOT, Idaho (News Release)—On the morning of March 19, Idaho Department of Fish and Game personnel responded to a report of three ...

Discovered: Male fish who engage in same-sex flirting lure in female fish; cheese dates back 7.5 millennia; Americans love public transportation once they give it a chance; depressed mice cheer up ...

Learn visual and behavioral cues to distinguish male from female bettas. Reviewed by Nick Saint-Erne Male bettas often have more vivid colors and longer fins compared to females. Females can display ...