Social intelligence in Old World monkeys: ecological and developmental view

Old World Monkeys

Old World monkeys, or cercopithecoids, are a diverse and widespread group of primates found throughout Africa and Asia. They are characterised by their specialised molar teeth, quadrupedal running behaviour, often spending more time on the ground than other primates, as well as their often large and complex social groups. They survive inthewidest rangeofhabitatsofanynonhumanprimates, with some ...

Old World Monkeys

Evolutionary rate variation in Old World monkeys.

We analysed over 8 million base pairs of bacterial artificial chromosome-based sequence alignments of four Old World monkeys and the human genome. Our findings are as follows. (i) Genomic divergences among several Old World monkeys mirror those between well-studied hominoids. (ii) The X-chromosome evolves slower than autosomes, in accord with 'male-driven evolution'. However, the degree of male...

Hearing of old world monkeys (Cercopithecinae).

The characteristics of normal hearing were examined in the laboratory for seven species of Old World monkeys. Operant conditioning procedures, coupled with standard audiometric testing methods, were used to assess thresholds of hearing, frequency range of hearing, and differential sensitivity to auditory intensity and frequency. To produce tonal stimulation, a n animal was trained to touch and ...

Animal Behaviour: Old World Monkeys Build New World Order

New experimental evidence shows that policing behaviour by dominant monkeys stabilizes and integrates macaque societies.