A gorilla named Ambam has become a YouTube hit after video emerged this week showing the 21-year-old Silverback strolling upright in his enclosure at Port Lympne Animal Park in the UK. According to his caretakers, it is rare, but not unheard of, for a gorilla to walk on two legs. "All gorillas can do it to some extent but we haven’t got any who do it like Ambam and he is quite a celebrity at the park," Keeper Phil Ridges said. More at newslite.tv.