The Science of Sustainability

CALIFORNIAN CONDOR

The critically endangered Californian Condor {Gymnogyps californianus} flies high in Arizona. Researchers worry that North America's largest bird may not recover in the face of ongoing poisoning from eating carcasses killed with lead bullets. (Photo: © John Cancalosi/naturepl.com)

The critically endangered Californian Condor {Gymnogyps californianus} flies high in Arizona. Researchers worry that North America's largest bird may not recover in the face of ongoing poisoning from eating carcasses killed with lead bullets. (Photo: © John Cancalosi/naturepl.com)

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CALIFORNIAN CONDOR