A study finds that variation in expression of light-sensitive opsin genes in female guppies can be attributed to both allele variations in long-wavelength-sensitive genes and to the light environment ...
Male guppies that glow with more orange aren’t just fashion-forward — they’re also significantly more sexually active. A UBC study reveals that brighter coloration is linked to virility and is ...
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 ...
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