The social brain hypothesis posits that social complexity is the primary driver of primate cognitive complexity, and that social pressures ultimately led to the evolution of the large human brain. Although this idea has been supported by studies indicating positive relationships between relative brain and/or neocortex size and group size, reported effects of different social and mating systems are highly conflicting.

Researchers set up cameras on the ground, in the understory and even climbed very tall trees to attach cameras in the canopy.

Nonhuman primates, our closest biological relatives, play important roles in the livelihoods, cultures, and religions of many societies and offer unique insights into human evolution, biology, behavior, and the threat of emerging diseases. They are an essential component of tropical biodiversity, contributing to forest regeneration and ecosystem health. Current information shows the existence of 504 species in 79 genera distributed in the Neotropics, mainland Africa, Madagascar, and Asia.

Just like humans, monkeys in zoos are not eating enough fruits and vegetables. This may have led to them having "humanized" gut flora.

Plasmodium knowlesi and Plasmodium cynomolgi are two malaria parasites naturally transmissible between humans and wild macaque through mosquito vectors, while Plasmodium inui can be experimentally transmitted from macaques to humans. One of their major natural hosts, the long-tailed macaque (Macaca fascicularis), is host to two other species of Plasmodium (Plasmodium fieldi and Plasmodium coatneyi) and is widely distributed in Southeast Asia.

Researchers at The University of Texas Medical Branch at Galveston, in collaboration with Arbutus Biopharma Corporation, have protected nonhuman primates against Ebola Sudan four days following exp

DEHRADUN: In a bid to control monkey menace in the state, the Uttarakhand forest department in collaboration with the Wildlife Institute of India (WII) is going to introduce a project, pegged as th

A high-resolution gene expression atlas of prenatal and postnatal brain development of rhesus monkey charts global transcriptional dynamics in relation to brain maturation, while comparative analysis reveals human-specific gene trajectories; candidate risk genes associated with human neurodevelopmental disorders tend to be co-expressed in disease-specific patterns in the developing monkey neocortex.

The Democratic Republic of Congo has been losing more and more forest every year to subsistence activities, mining, and farming. Continuing conflict is exacerbating the situation.

Two shark species, namely the whale shark and the winghead shark, now inch closer to extinction, after the International Union for the Conservation of Nature (IUCN) reclassified the two species as