Male guppies have an extraordinary diversity of colors. They found that the more colorful males were up to two times more sexually active, performing for females for longer periods of time and at a ...

If male guppies use bright colors to attract mates, why are there still lots of drab guppies? Bright colors may attract the attention of more than... Jan 14, 2016 — If male guppies use bright colors ...

Any owner of a freshwater aquarium likely has had guppies (Poecilia reticulata), those small brightly colored fish with a propensity for breeding. Now guppy populations manipulated in natural habitats ...

A study of guppies, a tropical fish commonly kept as ornamental fish, found that males with a darker orange body color were more likely to be sexually active and healthy. Male guppies have complex ...

NEWPORT NEWS, VA.? There’s no coat to brush and fluff. No nails to clip, or teeth to brush. Forget obedience training because they don’t respond to verbal commands. A Half Black AOC male guppy is ...

When Robert Heathcote dips his head into the rivers of Trinidad, he’ll often see little black dots moving through the water, even when it’s murky. Those dots are the eyes of small, inch-long fish ...

If your aquarium feels a little blah, maybe it’s missing some bold personalities. We’re talking fins that flash like neon signs and colors that could outshine a fashion runway. These fish don’t need a ...

Tiny fish called Trinidadian guppies turn their eyes black to warn other fish when they are feeling aggressive, new research shows. Tiny fish called Trinidadian guppies turn their eyes black to warn ...

The more colorful males were up to two times more sexually active than other guppies. By Laura Baisas Published Jul 10, 2025 3:00 PM EDT Get the Popular Science daily newsletter💡 Breakthroughs, ...