Endangered Species Act
September 1st, 2014 marks 100 years since the passenger pigeon went extinct, something thought unthinkable until it actually happened.
Thirty years ago, the combined effects of persecution, pollution and pesticides had decimated the bald eagle population.
The bald eagles at John Heinz National Wildlife Refuge in Philadelphia are spending a lot of time on the nest — waiting for new life to emerge.
The Endangered Species Act may itself be endangered, say its supporters, targeted with death by a thousand cuts.
Federal agents have arrested the owner of a Philadelphia Afrcian art store for allegedly smuggling elephant ivory into the U.S.