Carnivores

Once loathed as a "beast of waste," the gray wolf (in Yellowstone) is beloved by some as a symbol of unadulterated nature.

Wolves and the Balance of Nature in the Rockies

After years as an endangered species, the wolves are thriving again in the West, but they're also reigniting a fierce controversy

They pop their heads out of the water to keep track of family members.

Otterly Fascinating

Inquisitive, formidable and endangered, giant otters are luring tourists by the thousands to Brazil's unspoiled, biodiverse waterscape

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