Most primate species live in tropical rain forests.

David H. Abbott at the Wisconsin National Primate Research Center found that among many primate species, less egalitarian social structures correlated with higher levels of stress hormones among socially subordinate individuals.

Collaboration implies free will and choice even primate males do not succeed by dominating or controlling females.

Allogrooming, however, appears to occur more frequently between higher ranking individuals, a shared trait with other primate species.

The Angolan talapoin (Miopithecus talapoin), also known as the southern talapoin, is a species of primate in the Cercopithecidae family.

They are the only primate group that regularly produces twins, which constitute over 80 of births in species that have been studied.

But the only European biomedical research that has used great apes recently is the Biomedical Primate Research Centre at Rijswijk, in the Netherlands.

The Primate Cathedral of Saint Mary of Toledo () is a Roman Catholic cathedral in Toledo, Spain, see of the Metropolitan Archdiocese of Toledo.

Plesiadapis is one of the oldest known primate like mammal genera which existed about 55 58 million years ago in North America and Europe.

Herbert Terrace, the Columbia University psychologist who was directing the project, decided to end it and sent Nim back to the primate facility in Oklahoma.

Other studies, including molecular clock studies, have estimated the origin of the primate branch to have been in the mid Cretaceous period, around 85 mya.

The endocranial volume (the volume within the skull) is three times greater in humans than in the greatest nonhuman primate, reflecting a larger brain size.

These socioeconomic issues have complicated conservation efforts, even though the island of Madagascar has been recognized by IUCN SSC as a critical primate region for over 20 years.

Primates Since 2000, at least 25 new species of primate have been described 16 lemurs and nine monkeys, including the golden palace monkey or Madidi titi, named by auction.

It's the only possible explanation of why humans, if they're very unlucky, can become grossly obese, in a way that would be totally impossible for any other primate, physically impossible.

The bones within bat wings, for example, are very similar to those in mice feet and primate hands, due to the descent of all these structures from a common mammalian ancestor.

Large parts of Madagascar, which are now devoid of forests and lemurs, once hosted diverse primate communities that included more than 20 lemur species covering the full range of lemur sizes.

In 2009, scientists in Japan announced that they had successfully transferred a gene into a primate species (marmosets) and produced a stable line of breeding transgenic primates for the first time.

Nim was born in 1973, in a primate research facility in Oklahoma, and was taken from his mother when he was only ten days old, to be used in a sign language experiment.

That's the exact first moment a brain intention was liberated from the physical domains of a body of a primate and could act outside, in that outside world, just by controlling an artificial device.

And we had a robotic device, a humanoid robot, in Kyoto, Japan at ATR Laboratories that was dreaming its entire life to be controlled by a brain, a human brain, or a primate brain.

Laurie Santos looks for the roots of human irrationality by watching the way our primate relatives make decisions. A clever series of experiments in monkeynomics shows that some of the silly choices we make, monkeys make too.

Ranging in size from 30 g (1.1 oz) to 9 kg (20 lb), lemurs share many common, basal primate traits, such as divergent digits on their hands and feet and nails instead of claws (in most species).

Madagascar, home to five endemic primate families, has experienced the greatest extinction of the recent past since human settlement 1,500 years ago, at least eight classes and fifteen of the larger species have become extinct due to hunting and habitat destruction.

Elaine Morgan is a tenacious proponent of the aquatic ape hypothesis the idea that humans evolved from primate ancestors who dwelt in watery habitats. Hear her spirited defense of the idea and her theory on why mainstream science doesn't take it seriously.

And eventually she was moving it and moving it, and eventually stopped moving her right arm and, staring at the screen, could move the prosthetic arm in the other room only with her brainwaves which means that monkey became the first primate in the history of the world to have three independent functional arms.

Why would our judgments, and our emotions, vary in this way? For most of our evolutionary history, human beings and our primate ancestors have lived in small groups, in which violence could be inflicted only in an up close and personal way, by hitting, pushing, strangling, or using a stick or stone as a club.