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Monkeys News
July 20, 2023

Top Headlines

Study Shows Same-Sex Sexual Behavior Is Widespread and Heritable in Macaque Monkeys

Observations of a wild colony of macaques over three years show same-sex sexual behavior among males is widespread and may be ...

Rising Monkey and Pig Populations Pose Human Disease Risk

Exploding populations of wild pigs and macaque monkeys in Southeast Asia are threatening native forests and disease outbreaks in livestock and people, according to new ...

Do Hummingbirds Drink Alcohol? More Often Than You Think

Animals that eat fruit or sip nectar often ingest alcohol because naturally occurring yeasts turning sugar into ethanol. But how do animals feel about that? A new study details an experiment to determine whether hummingbirds are turned off by alcohol in sugar water. At 1% by volume, no. At 2% by ...

Taurine May Be a Key to Longer and Healthier Life

A study finds that deficiency of taurine, a molecule produced in our bodies, drives aging, and taurine supplements can improve health and increase lifespan in ...
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Monkeys Are Smarter Than We Thought

Just like humans, monkeys are capable of complex deliberation and careful decision-making that consider combinations of factors such as costs, consequences and ...

Researchers Create Embryo-Like Structures from Monkey Embryonic Stem Cells

Human embryo development and early organ formation remain largely unexplored due to ethical issues surrounding the use of embryos for research as well as limited availability of materials to study. ...

Sleight-of-Hand Magic Trick Only Fools Monkeys With Opposable Thumbs

An illusion involving a hidden thumb confounds capuchin and squirrel monkeys for the same reason it does humans -- it misdirects expected outcomes of actions they can carry out. However, marmosets ...

Climate Change Threatens Lemurs on Madagascar

Even supposedly adaptable mammal species face increased risk of ...

Ending THC Use May Reverse Its Impacts on Male Fertility, Research Shows

A previous study confirmed that chronic use of cannabis may greatly impact male fertility and reproductive outcomes in nonhuman primates -- but it was unclear whether the effects are permanent. Now, ...

Observing Group-Living Animals With Drones and Computer Vision

New method to study the movement, behaviour, and environmental context of group-living animals using drones and computer ...

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Surprising Similarities in Stone Tools of Early Humans and Monkeys

Researchers have discovered artefacts produced by old world monkeys in Thailand that resemble stone tools, which historically have been identified as intentionally made by early hominins. Until now, ...

Insights Into the Evolution of the Sense of Fairness

A sense of fairness has long been considered purely human -- but animals also react with frustration when they are treated unequally by a person. In a study with long-tailed macaques (Macaca ...

Rewiring Blood Cells to Give Rise to Precursors of Sperm

Scientists transform blood cells to regain a flexible fate, growing into a precursor of sperm ...

Roads, Pet Dogs and More May Pose Hidden Threat to Africa's Primates

Simple solutions, such as not leaving out food at night, could help to protect non-human primates in Sub-Saharan Africa -- some of which are already struggling because of threats like climate change ...

Madagascar Mouse Lemur Retroviruses Are Diverse and Surprisingly Similar to Ones Found in Polar Bears or Domestic Sheep

Madagascar is home to a unique biodiversity with a large number of endemic species, among those many lemur species, including the mouse lemurs. This diversity is also found in their retroviruses. ...

Extinct 'Monkey Lemur' Shows Similarities to Fossil Humans

Analysis of teeth of extinct lemurs has revealed fascinating clues to the evolution of humans, a new study has ...

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Reading the Room: Humans Struggle to Identify Aggression in Dogs, Other Humans

Researchers showed participants videos of human, dog, and macaque pairs to determine how well humans assess social ...

Experimental COVID-19 Vaccine Offers Long-Term Protection Against Severe Disease

A newly published follow-up study has found that the Moderna mRNA vaccine and a protein-based vaccine candidate containing an adjuvant, a substance that enhances immune responses, still provide ...

Female Monkeys 'Actively Reduce' Social Network as They Age

Female rhesus macaques 'actively reduce' their social networks and prioritize friends and family as they get older, new research ...

Brain Cells Use a Telephone Trick to Report What They See

'How many fingers am I holding up?' For vision-sensing brain cells in a monkey's visual cortex, that answer depends on whether the digits are next to each other or partially ...

Wild Primate Study Ties Importance of Social Environment to Molecular Markers of Age in the Brain

A research team has demonstrated that, in a population of macaque monkeys, females with a higher social status had younger, more resilient molecular profiles, providing a key link between the social ...

1,700-Year-Old Spider Monkey Remains Discovered in Teotihuacán, Mexico

The complete skeletal remains of a spider monkey -- seen as an exotic curiosity in pre-Hispanic Mexico -- grants researchers new evidence regarding social-political ties between two ancient ...

Evidence for Intentional Communication in Female Putty-Nosed Monkeys

Female putty-nosed monkeys deliberately use alarm calls to recruit males to defend the group. This is the conclusion reached by evolutionary biologists after conducting observations in the Republic ...

Differences Between Brains of Primates Are Small but Significant, Study Shows

While the physical differences between humans and non-human primates are quite distinct, a new study reveals their brains may be remarkably similar. And yet, the smallest changes may make big ...

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