Federal officials cited "logistical reasons," but conservationists worry the delay is due to livestock industry lobbying.

"The calf swam across the river and, thinking the wolves were gone, decided to swim back. Unfortunately, 3 wolves were ...

Picture the frozen winds of the Ice Age tearing across vast, wild plains. Imagine two giants—one with fangs like daggers, the ...

The American bald eagle, a national symbol of freedom and strength, returned from the brink of extinction, but its battle for ...

In the unforgiving world of the animal kingdom, survival is a constant battle, and some of the fiercest creatures clash in ...