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 ...
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, ...
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