Although gorillas occasionally walk on two legs (bipedal), it is less common. Not for Louis though – he can often be seen walking bipedal when his hands are full of snack or when the ground is muddy ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. An 18-year-old silverback gorilla at the Philadelphia Zoo likes to stay ...

A gorilla at the Philadelphia Zoo has gone viral for walking like a human so he doesn't get his hands dirty. Learn more about Louis, an 18-year-old male western lowland gorilla, in the video above. A ...

Louis is not like his fellow playmates. The gorilla has been a star at the Philadelphia Zoo for the past 14 years, but new videos have brought him nationwide attention. Weighing in at a hefty 470 ...

PHILADELPHIA (AP) – A male gorilla at the Philadelphia Zoo is taking a stand against dirty hands by opting to walk on two legs. Apparently, 18-year-old Louis is a clean freak. When Louis has his hands ...