A proposed change in the interpretation of "harm" would degrade the power of the law that protects plants and animals from ...

The black-footed ferret is hard to find. That wasn’t always the case. The species is endemic to North America, and in the ...

Birds are rapidly vanishing from North America, with dramatic population losses in places that were once thought safe.

Despite our best efforts, there are many species of animals that become extinct every year. There are thousands of species of ...

Tyrannosaurus rex evolved in North America, but its direct ancestor came from Asia, crossing a land bridge connecting the ...

Analysis of nearly 500 bird species across North America has found that three-quarters are declining across their ranges, with two-thirds of the total shrinking significantly. The study ...