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Vultures play an important role in ecosystems. With vulture populations dropping fast, researchers are racing to save these strange birds.
Octopus, cuttlefish, and squid populations are booming in all the world’s oceans.
Thanks to government protections, grizzly bears have bounced back from near-extinction. But can they survive in the wild without help?
TIME’s space writer spent 24 hours inside a NASA base, in Hawaii, that copies conditions on the Red Planet.
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