The orangutan lives on Sumatra, south of a lake in the caldera of a supervolcano. There are fewer than 800 individuals in the population, researchers say.
Climate change is stealing the American pika's habitat in the Sierra Nevada mountains.
Must the money raised to save wildlife always aid the most popular animals? New research suggests that marketing can persuade donors that northern hairy-nosed wombat lives matter too.
The species, which haven't been seen for years or decades, include pink-headed ducks, red-thighed monkeys and a seahorse no one's ever seen in the wild.
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