Pet owners usually have no choice but to implant their cats or dogs with microchips to help identify the animals if they get lost or decide to escape. However, one Siberian Husk...

Pet owners usually have no choice but to implant their cats or dogs with microchips to help identify the animals if they get lost or decide to escape. However, one Siberian Husk...

While gorillas are perfectly capable of walking on two legs, most take just a step or two before dropping on all fours. However, Louis, a 16-year-old male gorilla at the Philade...