Humans call animals 'dumb'... after they robbed their entire own precious world. They are intelligent beings in their own right, and thoroughly self-sufficient... if not molested by humans. Yet, after millennia of slavery by selfish/callous humans they're made to look dumb! The 'superior species' in their situations would, too, appear 'dumb'.

FREE animals of the jungle/air/sea/mountains are called 'wild', 'savage', 'vicious', 'beasts' who defend themselves and their own territories from greedy, ruthless 'brave' men armed to the teeth/ with snares, tranquilizing guns, other. Enslaving them forever, then murdering them, THEN calling them 'dumb'!!!