Pet are a relatively recent invention. In the 18th and 19th centuries, pethood arose in the split between farm animals and home animals.

National parks like Yellowstone are great places to get close to nature, but tourists shouldn't forget that they are also important refuges for wildlife.

Belgian scientists are training rats to detect diseases. Other animals, including dogs, have a history of disease-detection.

Humans see our own expressions everywhere, especially on dolphins and domesticated pets.

Blehert interviewed about bats with White Nose Syndrome. White-Nose Syndrome is a fungal disease that's killed over six million bats in the past nine years.