Monkeys News

May 21, 2025

Top Headlines

Capuchin Monkeys Develop Bizarre 'Fad' of Abducting Baby Howlers

May 19, 2025 — Animal abduction: Biologists documented five male capuchin monkeys carrying at least eleven different infant howler monkeys -- a behavior never before seen in wild primates. Rise and spread: The sightings were remotely recorded by over 85 camera ...

Red Alert for Our Closest Relatives

May 8, 2025 — New report shows drastic decline in endangered primates and calls for conservation ...

Evaluating the Safety and Efficacy of a Smallpox Vaccine for Preventing Mpox

May 8, 2025 — The recent global monkeypox (mpox) outbreak, with a new and aggressive variant, has underscored the dire need for safe, broadly effective, and accessible vaccines. The LC16m8 vaccine, an attenuated ...

Monkey Database Reveals Shift Towards Open Science

Apr. 24, 2025 — A database about monkey behavior reveals how science is evolving towards a more open, collaborative ...

Latest Headlines

updated 10:49pm EDT

How Changes in Lemur Brains Made Some Mean Girls Nice

Apr. 21, 2025 — If there was a contest for biggest female bullies of the animal world, lemurs would be near the top of the list. It's the ladies who get their way and keep males in line. In one branch of the lemur ...

Primate Mothers Display Different Bereavement Response to Humans

Apr. 15, 2025 — Macaque mothers experience a short period of physical restlessness after the death of an infant, but do not show typical human signs of grief, such as lethargy and appetite loss, finds a new study by ...

Monkeys Are World's Best Yodellers -- New Research

Apr. 2, 2025 — A new study has found that the world's finest yodellers aren't from Austria or Switzerland, but the rainforests of Latin America. The research provides significant new insights into the diverse vocal ...

How the Brain Evaluates Rewards

Apr. 2, 2025 — Researchers have gained a new understanding of how the brain processes reward and risk information. Neuroscientists show how nerve cells in the so-called amygdala not only encode the probability and ...

Dopamine Signals in Primate Brains

Mar. 12, 2025 — We're all familiar with Pavlovian conditioning, in which a reward-anticipatory behavior follows a reward-predicting stimulus. Perhaps you experience it yourself when passing a cafe or restaurant and ...

TB Vaccine Candidate Provides 'Elite' Protection

Mar. 5, 2025 — A live-attenuated tuberculosis (TB) vaccine candidate in development elicits a much more balanced and effective immune response compared to the existing vaccine used across much of the world, ...

Designing Self-Destructing Bacteria to Make Effective Tuberculosis Vaccines

Feb. 25, 2025 — Working toward more effective tuberculosis (TB) vaccines, researchers have developed two strains of mycobacteria with 'kill switches' that can be triggered to stop the bacteria after they activate an ...

Near-Complete Skull Discovery Reveals 'Top Apex', Leopard-Sized 'Fearsome' Carnivore

Feb. 17, 2025 — A rare discovery of a nearly complete skull in the Egyptian desert has led scientists to the 'dream' revelation of a new 30-million-year-old species ...

Scratching Through the Negative Emotions

Feb. 7, 2025 — 'We feel sorry because we cry,' wrote philosopher and psychologist William James, 'angry because we strike, afraid because we tremble,' suggesting that emotional bodily responses like crying cause ...

Being a Ladies' Man Comes at a Price for Alpha Male Baboons

Jan. 23, 2025 — There's a downside to being a powerful alpha male -- at least if you're a baboon. Studies show that despite their high rank, the No. 1 males in baboon society are also some of the most stressed out, ...

Antibody Treatment Prevents Severe Bird Flu in Monkeys

Jan. 30, 2025 — The antibody targets a stable part of the bird flu virus, ensuring that the immune protection can resist new variants and offer long-term protection against the globally spreading airborne ...

First Mouse With Two Male Parents to Reach Adulthood

Jan. 28, 2025 — A team of stem cell scientists have successfully used embryonic stem cell engineering to create a bi-paternal mouse -- a mouse with two male parents -- that lived until adulthood. Their results ...

Stronger Stress Response in Monkeys Helps Them Survive

Jan. 23, 2025 — Researchers used the environmental circumstances and fecal samples collected from the six years prior to the severe El Ni o drought in Costa Rica to study the relationship between the endocrinologic ...

Wild Baboons Not Capable of Visual Self-Awareness When Viewing Their Own Reflection

Jan. 21, 2025 — Wild baboons failed to demonstrate visual self-recognition in a test carried out by ...

Cavity-Nesting Birds Decorate With Snake Skin to Deter Predators

Jan. 16, 2025 — When a bird drapes its nest with snake skin, it isn't just making an interesting decor choice. Researchers find that for some birds, it keeps predators at ...

Detecting Hidden Genetic Relationships in Animal Populations

Jan. 15, 2025 — Understanding biological relationships is often critical when studying animal populations. Researchers have now developed a transformative approach that identifies stretches of DNA that two ...

Self-Destructing Vaccine Offers Enhanced Protection Against Tuberculosis in Monkeys

Jan. 10, 2025 — The in-built in protection mechanisms offer a safer and more effective way to combat the deadliest disease of ...

How Do Monkeys Recognize Snakes So Fast?

Dec. 26, 2024 — A researcher has found that the rapid detection of snakes by monkeys is because of the presence of snake scales as a visual cue. His findings highlight an evolutionary adaptation of primates to ...

Building a Backbone: Scientists Recreate the Body's 'GPS System' in the Lab

Dec. 18, 2024 — Scientists have generated human stem cell models which contain notochord -- a tissue in the developing embryo that acts like a navigation system, directing cells where to build the spine and nervous ...

Threat of Abrupt Mortality Events Keeps Endangered Monkey Population at Risk, Despite Decades of Growth

Dec. 16, 2024 — Despite the population being almost four times larger than it was in 1982, a new study published in the journal Ecology suggests the northern muriqui monkeys remain at risk, especially in the face of ...

Do Animals Get Jealous Like People? Researchers Say It's Complicated

Dec. 12, 2024 — Using data from 23 studies of what psychologists call 'inequity aversion,' researchers combed through results of more than 60,000 observations involving 18 animal species. In what they said ...

The Secret to Our Big Brains Might Be in Our Gut

Dec. 4, 2024 — Brain tissue is among the most energetically costly in the body, and as a result, larger-brained mammals require more energy to support brain growth and maintenance. Exactly which biological changes ...

The Viral Puzzle of Why Humans Are Susceptible to Hepatitis B Virus, but Monkeys Are Not

Dec. 3, 2024 — Hepatitis B virus (HBV) has a narrow host range, mainly infecting hominoids. A new study reveals the structural differences in the liver cell receptor (NTCP) between humans and monkeys, explaining ...

Warming Temperatures Impact Immune Performance of Wild Monkeys

Nov. 29, 2024 — When wild capuchin monkeys experience experience higher temperatures, the performance of their generalized immune system declines. This study illustrates how climate change many impact ...

These Wild Chimpanzees Play as Adults to Better Cooperate as a Group

Nov. 21, 2024 — Compared to children, adults don't play as much, but social play into adulthood is considered a universal human trait. Play has a role in building tolerance, cohesion, bonding, and cooperation. ...

Scientific Thought on Emotions in Animals

Nov. 14, 2024 — How do animal behavior researchers feel about the feelings of animals? A new survey helps to answer that ...

Human Stem Cell-Derived Heart Cells Are Safe in Monkeys, Could Treat Congenital Heart Disease

Nov. 13, 2024 — A research team reported recently that heart muscle cells grown from induced pluripotent stem cells can integrate into the hearts of monkeys with a state of pressure ...

More Than One Third of Vietnam's Mammal Species Are at Risk of Extinction, Study Finds

Nov. 12, 2024 — A recent study highlights that over one-third of Vietnam's 329 mammal species are threatened with ...

New Findings on Animal Viruses With Potential to Infect Humans

Oct. 31, 2024 — Scientists investigating animal viruses with potential to infect humans have identified a critical protein that could enable spillover of a family of organisms called arteriviruses. In a new study, ...

Oct. 30, 2024 — In common marmosets, the brain regions that process social interactions develop very slowly, extending until early adulthood, like in humans. During this time, all group members are involved in ...