Gorillas sune manyan birai mafi girma kuma mafi karfi. Suna cikin dabbobi masu shayarwa kuma su ne dangi na kusa da mutane. A cikin yanayi, suna rayuwa ne kawai a tsakiyar Afirka, kusan a yanki ɗaya da chimpanzees.
Lokacin da gorilla na maza suka tashi, tsayinsu kusan ɗaya da babban mutum, wato santimita 175. Har ila yau, sau da yawa sun fi mutane nauyi. Dabbobin maza na iya yin nauyi har zuwa kilogiram 200. Gorilla na mata sun kai kusan rabinsa.
Gorillas suna cikin haɗari. Mutane suna kara share dazuzzukan da shuka shuka a can. Inda ake yakin basasa, kare gorilla shima yana da wahala. Haka kuma mutane na kara farautar gorilla domin cin naman su. Masu bincike, mafarauta, da masu yawon bude ido suna kamuwa da gorilla da cututtuka irin su Ebola. Wannan na iya kashe gorilla rayukansu.