In reptiles, a simple temperature change can determine whether an egg develops into a male or female. This process is formally known as temperature-dependent sex determination (TSD), in which the sex ...
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 ...
Animalogic on MSN
Watch what happens when a mandarin duck drake shows off his bright feathers to a hidden female
Mandarin ducks are known for one of the most striking visual contrasts between males and females in the bird world. Males develop elaborate plumage with vivid colors and distinctive sail-like feathers ...
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