World's fastest shark gets a burst of speed from shape-shifting skin
4 March 2019
Highly flexible denticles reduce the drag experienced by the mako shark’s skin, and could inspire a new generation of materials for fighter jets and helicopters
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Premium
Moose and sheep pass down their migration routes through culture
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Bighorn sheep and moose establish a good migratory route through years of cultural learning – and the knowledge can be lost in a generation if they are moved
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A crucial feeding ground for migrating birds has been almost destroyed by pollution and a bad winter, but help is at hand in the form of an all-you-can-eat buffet
