This also included Rhesus monkeys like the ones who are missing, but officials warn against trying to pick them up and take them home.

A rhesus macaque monkey hangs out near a fence at the primate research center at UC Davis on Tuesday in Davis, Calif. A UC Davis psychiatry professor recently developed a technique that the ...

The rhesus macaque monkeys that escaped a South Carolina medical lab this week are among the most studied animals on the planet.

At least one species of primate underperforms when the heat is on After researchers presented a huge reward, monkeys did less well in a skill test.

SAN JUAN, Puerto Rico (AP) — Police in Puerto Rico captured a rhesus macaque monkey on Friday that was being chased by a crowd of people at a public housing complex near the U.S.

Scientists have spent decades studying rhesus macaques on the remote Monkey Island. They're learning how the stress of environmental crises, like hurricanes, impact the monkeys.

Hurricane Maria in 2017 changed the landscape of Cayo Santiago, an island home to roughly 1,800 rhesus macaques. Researchers now study the ways the monkeys have adapted to the changed environment.

Retro, a cloned rhesus monkey, is the first such primate to reach adulthood after being born on July 16, 2020 by researches at the Chinese Academy of Sciences.