>> another viral hit. this short clip uploaded in january 2011. yes, that appears to be a gorilla walking upright just like a man. all the other gorillas are sitting or on all fours, like you would expect. it seems suspicious. could this be a man in a gorilla suit? nope. this is as real as it gets. bam bam is a western lowland gorilla living at the port limnney wild animal park in kent, england, where he can sometimes be seen strutting across his enclosure on just two feet. keepers say this stance gives him a height advantage he can use to see over the wall when they come to feed him. and apparently, the ability to walk like a man runs in the family. bam bam's father displayed the same unusual behavior.