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Amur Leopard Population Doubles
World's rarest cat now numbers more than 60 in new survey
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Jared Leto Joins WWF as Global Ambassador
Actor, musician and director will raise awareness of critical conservation issues
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Tracks Tell a New Tale
DNA extraction from polar bear footprints leads to ecological discovery
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Climate Data Shows What's Good Business
Helping companies rethink how they save money and fight climate change
