David Bald Eagle, who died July 22 at 97, was known for an eclectic mix of passions, especially his work in motion pictures. But he also left a legacy of activism for the Native American community, including his service as the first chief of the United Indigenous Nations of the Americas.
Biodiversity across much of Earth has recently dropped below safe levels. Here are some of the species we’ve lost just this century.
Insect populations are declining dramatically in many parts of the world, recent studies show. Researchers say various factors, from monoculture farming to habitat loss, are to blame for the plight of insects, which are essential to agriculture and ecosystems.