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Journal ArticleDOI

Monkey responses to three different alarm calls: evidence of predator classification and semantic communication

Robert M. Seyfarth, +2 more
- 14 Nov 1980 - 
- Vol. 210, Iss: 4471, pp 801-803
TLDR
Recordings of the alarms played back when predators were absent caused Vervet monkeys to run into trees for leopard alarms, look up for eagle alarms, and look down for snake alarms.
Abstract
Vervet monkeys give different alarm calls to different predators. Recordings of the alarms played back when predators were absent caused the monkeys to run into trees for leopard alarms, look up for eagle alarms, and look down for snake alarms. Adults call primarily to leopards, martial eagles, and pythons, but infants give leopard alarms to various mammals, eagle alarms to many birds, and snake alarms to various snakelike objects. Predator classification improves with age and experience.

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References
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Journal ArticleDOI

Teaching Sign Language to a Chimpanzee

TL;DR: The protein encoded by Nup160 directly interacts with that of another hybrid lethality gene, Nup96, indicating that at least two lethal hybrid incompatibility genes have evolved as byproducts of divergent coevolution among interacting components of the Drosophila nuclear pore complex.
Journal ArticleDOI

Vervet monkey alarm calls: Semantic communication in a free-ranging primate

TL;DR: It is concluded that vervet alarm calls function to designate different classes of external danger, and context was not a systematic determinant of response.
Journal ArticleDOI

Natural Concepts in Pigeons.

TL;DR: Pigeons learned to discriminate pictures of trees, bodies of water, or a particular person in three separate experiments, showing similar patterns of errors and correct discrimination.
Journal ArticleDOI

Can an ape create a sentence

TL;DR: More than 19,000 multisign utterances of an infant chimpanzee (Nim) were analyzed for syntactic and semantic regularities, showing similar non-human patterns of discourse.
Journal ArticleDOI

The gestures of a gorilla: Language acquisition in another pongid

TL;DR: The gorilla is using a rapidly expanding vocabulary of signs to express semantic and possibly grammatical relations similar to those expressed by human children in the early stages of language acquisition.