Research shows that building collisions take a staggering annual toll on North America's bird population.
Insect conservation can be a tough sell. Lots of people simply don’t like bugs, and an endangered bug simply doesn’t pull on the heart strings.
The endangered American eel, once abundant along the U.S. East Coast, is critically important in keeping rivers ecologically sound.
More halibut are dumped dead in the ocean as waste than sold by fishermen.