Searching for elusive Siberian tigers in remote Russia.
Animals sometimes form cross-species relationships, which may give information about animal emotions. Examples include a goat guiding a blind horse; a doe visiting her Great Dane surrogate mother; a gibbon living with a family of capuchins.
A male and female wood duck bond, migrate together across thousands of miles and care for a brood of ducklings.
Wolves and buffalo try to get along in Canada's Wood Buffalo National Park.
A study of how plants behave reveal they are as busy, responsive and complex as humans.
Writer James Prosek uncovers the mystery of the eel.
The Lipizzaner stallions, bred for their courage, strength and character, bond with the people that ride them.
More than 30 million white-tailed deer live in the U.S.
Africa's biggest animal migration commences as 20,000 zebra trek across the Kalahari's Makgadikgadi Pans.