An adult male gorilla's arm span is 8' long. Now focus on the hands. Gorillas have fingerprints and opposable thumbs just like us.
Thumbs help gorillas use their hands in many different ways.
They can hold food like we do, build a nest, and groom their family and friends. Take a look at the Gorilla Menu and see what the gorillas at the Los Angeles Zoo eat. Gorilla Groomers Gorilla mothers will often groom their babies. They will pick through the hair and remove dry skin, dirt, or bits of grass. Grooming is very relaxing - almost like having someone rub your back.