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Alturas Wildlife Sanctuary Protect Costa Ricas Rainforest Wildlife Our Impact. To date Alturas Wildlife Sanctuary has rescued approximately 210 different species of Costa Rican wildlife The Sloth The Sloth The Sloth is just 1 of the 44 species of mammals you will be helping to save when you donate to Alturas Wildlife Sanctuary. Click below to see photos of all the mammal species that are in our care. The Aracari and Macaw The Aracari and Macaw The Aracari and Macaw are just two of the 60 species of birds that live with us at Alturas.