The U.S. Fish and Wildlife Service says it is investigating Minnesota dentist Walter Palmer, but the agency says it has failed so far to track him down.
The chytrid fungus has wiped out populations of amphibians around the world. A type of the fungus infects only salamanders, and researchers have identified vulnerable areas in North America.
Scientists say lake herring, a key fish in Lake Superior's food web, is suffering because of mild winters and Europe's appetite for roe. Some say the species may be at risk of "collapse."
Cecil the lion died in an apparently illegal hunt in Zimbabwe. But legal trophy hunting can bring in big bucks for Africa nations. Our interviewee thinks tourism is a far more profitable venture.
Teresa Ann Miller often works with furry performers, but the Hungarian film White God was especially challenging. "The dogs just thought it was a party," she says of the film's dog-pack scene.
A very large cat has been roaming the streets of Milwaukee's central city and it has residents on edge. A number of witnesses claim it is a mountain lion. No one has reported their "pet" missing.
Jia Jia, who lives at a Hong Kong amusement park, became the oldest panda ever living in captivity and the oldest panda currently living in captivity. In human terms, Jia Jia would be more than 100.
In Angola, elephants avoid leftover land mines by using their prodigious sense of smell. The U.S. Army took notice — and now it's hoping to learn from elephants how to develop a better detector.
Yes, health officials in Florida have reported nine cases of leprosy so far this year. And yes, armadillos can transmit leprosy. But scientists say we needn't fear the armored mammals.
The marine mammal was spotted in the narrow canal that connects the Chesapeake and Delaware bays just a few days after one was seen in an estuary of the Potomac River.