Experts say there’s “no substitute” for the Bird Banding Laboratory or the Breeding Bird Survey, which help reveal the health and status of avian populations across the country.

When a toxic waste disaster unfolded in the 1970s, a White housewife became the face of the movement. Down the street, Black mothers worked twice as hard to be heard.

Since the film’s release, sharks have experienced the worst declines in their 450-million-year history. Can we trace that decline to their villainous portrayal in this influential movie?

In 2012 a militia murdered two rangers, other officials, and 14 animals at the Okapi Conservation Center. This year brought an important update.

As U.S. restrictions tighten, Cuba’s efforts to protect its ecosystems are faltering — with rising deforestation, strained conservation programs, and growing pressure on protected areas.

Hurricanes and alterations to natural hydrology have hammered Florida’s mangroves, but they can be restored.

Volunteers turned out in force to welcome beavers back to degraded mountain meadows.

As ecologists debate what to do about “invasive” swans in New York City, volunteers fight to keep them alive.

The Bali myna once faced extinction from the illegal wildlife trade. An unusual approach may have helped save them.

Earth Day coordinator Denis Hayes grew up in Camas, Washington, surrounded by natural beauty and unchecked pollution.