Bat expert Rodrigo Medellin
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Meet Mexico's 'bat man'
Ecologist and Rolex Awards Laureate Rodrigo Medellín has studied bats for 40 years. In his native Mexico, he has been instrumental in helping remove the lesser long-nosed bat from the endangered species list. This bat pollinates agave plants, making it vital to the tequila and mezcal industries.
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Call to Earth 16 videos
Bat expert Rodrigo Medellin
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Meet Mexico's 'bat man'
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FILE - This July 6, 2011, file photo shows a grizzly bear roaming near Beaver Lake in Yellowstone National Park, Wyo. The Montana Fish and Wildlife Committee is set to take a final vote on proposed rules to hunt grizzly bears if federal protections are lifted. (AP Photo/Jim Urquhart, File)
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How a few strands of hair are helping to protect Canada’s grizzlies
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Visiting Florida's art-ificial reef trail
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Guardians of the deep sea: protecting Caprera Canyon
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Protecting the Mediterranean’s marine life
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Call to Earth: Beyond the lens
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The art of capturing the shot
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Wildlife photographer shares his most powerful images, and how they can lead to change
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One of the world’s largest flying birds is making a comeback
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This photographer spent 396 days in the Amazon
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Restoring the 'River of Grass'
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Saving South Africa's endangered sandfish
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Meet the blind conservationist fighting to save nature’s soundscapes
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<p>Iracambi, an environmental organization, is working with the indigenous Puri people to restore biodiversity in the Atlantic Forest in southeastern Brazil, an area experiencing higher rates of deforestation than the Amazon.</p>
Guardians of the Forest Seeds: Restoring Brazil's Atlantic Forest
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Protecting Mexico's bats
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Protecting Nigeria's endangered primates
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