A new fossil discovery indicates a second primate group also traversed the Atlantic millions of years ago on a raft of vegetation.

Rhesus macaques can be infected with SARS-CoV-2, leading primate center scientists to try to prevent outbreaks in their colonies, especially as experiments on coronavirus start.

A small study of macaques finds they don’t develop a coronavirus infection the second time they are exposed, supporting the idea of using plasma from recovered patients as a treatment for COVID-19.

The inner ear cavity proves to be a useful tool for studying the evolutionary relationships among monkeys, apes, and humans.

Oxidative stress associated with aging damages ovarian cells in both humans and nonhuman primates.

The auditory cortices of humans and rhesus monkeys respond very differently to harmonic tones.

The seven primates came into contact with a dye that was used on their mothers, documents reveal.

Rhesus monkeys engineered to express a human gene reportedly show delayed brain development and better short-term memory. Fellow scientists are raising ethical red flags.

Nearly 50 years after its development, only a handful of creatures have passed the self-awareness exam. A new attempt with fish highlights a debate over the test’s use and meaning.