A detailed have a look at the stomach feathers of a desert hen reveals intricate spiral buildings that take up and lure water, permitting the Namaqua sand rooster to hold water inside its feathers.
Male Namaqua sand rooster (Pterocles identify) make each day journeys to puddles in South Africa the place they submerge their decrease feathers. Submerged birds then fly as much as 30 kilometers to their thirsty offspring, which suck water from their father’s feathers. Researchers first found that these feathers had spiral filaments referred to as barbules greater than 50 years in the past. However nobody had taken a more in-depth look.
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