Nathan Hurner/U.S. Fish and Wildlife Service via AP U.S. wildlife officials want to extend federal protections to a rare Nevada fish that environmentalists say is “barely clinging to existence" ...

LAS VEGAS (AP) — Federal protections could soon be extended to a rare Nevada fish that environmentalists say is “barely clinging to existence” because of rapid groundwater pumping in a remote region ...

While green isn’t an unusual color in nature, beautiful green animals are somewhat rare and exotic. Many green-colored animals, such as toads and various insects, have little to distinguish them ...