Scientist report on how West African Green monkeys respond to a new threat (drones) by associating a new words/vocalization for drones that sounds remarkably like the vocalizations that Vervet monkeys make for "eagle" - they suggest an evolutionary vocalization structure for the similar vocalization User FLACDealer, in the Reddit Science subreddit, 31 May 2020
Scientist report on how West African Green monkeys respond to a new threat (drones) by associating a new words/vocalization for drones that sounds remarkably like the vocalizations that Vervet monkeys make for "eagle" - they suggest an evolutionary vocalization structure for the similar vocalization User Tardigradelegs, 17 Aug 2019
Scientist report on how West African Green monkeys respond to a new threat (drones) by associating a new words/vocalization for drones that sounds remarkably like the vocalizations that Vervet monkeys make for "eagle" - they suggest an evolutionary vocalization structure for the similar vocalization User worldnewsbot, in the News From Around The World subreddit, 01 Jun 2019
Scientist suggest an evolutionary vocalization structure for the similar vocalization in monkeys User threequartersavvy, in the likeus subreddit, 01 Jun 2019