When it comes to choosing a partner, some species prefer males that stand out from the crowd. Evolutionary biologists call the resulting process negative frequency-dependent selection. It means that a ...
Look into a tank of male guppies and something becomes immediately obvious: almost no two fish look alike. Orange spots, black bars, iridescent flecks of blue — the variation is extraordinary, and ...
TinaFishing on MSN
The Incredible Catch Colorful Aquarium Fish In Small Pond, Clown Fish, Guppy, Banana Fish, Koi, Eel
August 17, 2026. More for ...
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