adult ape arboreal Asian bearded female great apes hairy highly intelligent intelligent mammals mature mother orang-utan pongo abelii primate primates red red-haired senior junior offspring orangutan playful playing young youngster agile climber climbing great-apes highly-intelligent pongo-abelii rope african aggressive animal apes appearance chimp chimpanzee common-chimpanzee dark dishevelled expression expressive face features great-ape mammal pan-troglodytes prominent resting sitting strong territorial zoo bright-eyed eating hanging snacking suspended color colored colorful colour coloured colourful enclosure fur furry long-haired strength tower