Vervet monkeys have a different alarm call for eagles, leopards and snakes

Vervet monkeys give acoustically distinct alarm calls for each major predator, and the calls alone trigger the correct escape response even when researchers play them back with no predator present: the eagle call sends monkeys down from the treetops, the leopard call sends them up, and the snake call makes them stand and scan the grass.

— Robert Seyfarth, Dorothy Cheney, Peter Marler, Monkey Responses to Three Different Alarm Calls: Evidence of Predator Classification and Semantic Communication — Science, 1980