RIP Koko, the gorilla who could communicate with humans using sign language. She also played the recorder, became friends with celebrities like Robin Williams and Mr. Rogers, and loved her kitten, All Ball. 🦍💜🐱 . . . . . . . . . #koko #ripkoko #gorilla #kokothegorilla #rip #restinpeace #kitten #signlanguage #kindness #animalsofinstagram #catsofinstagram #communicate #evolution #human #compassion #science #tbt #throwbackthursday 📷 @natgeo