Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Female macaques and their infants, sitting close to one another in a bare landscape

On the island of Cayo Santiago, female macaques and their infants sit close to one another in a landscape stripped bare by Hurricane Maria. Credit: Lauren Brent

Animal behaviour

A hurricane wrecks ‘Monkey Island’ — and leads to new monkey friendships

Amid the devastation wrought by Hurricane Maria, rhesus macaques sought support from each other to endure hard times.

A catastrophic hurricane brought more than 100 monkeys living on a Caribbean island closer together, helping them to survive the storm’s aftermath.

For decades, scientists have tracked the alliances, power struggles and social relations of the feral rhesus macaques (Macaca mulatta) on Cayo Santiago, a small island near Puerto Rico. After Hurricane Maria devastated the island in 2017, Camille Testard at the University of Pennsylvania in Philadelphia and her colleagues sought to understand how the disaster affected the monkeys’ social interactions.

The scientists calculated that relatively few adult macaques died in the six months after the storm. But Maria stripped away nearly two-thirds of the island’s vegetation, potentially increasing competition for shade and food.

The authors compared observations of the animals’ behaviour from before and after the storm and found that monkeys became more social after the hurricane: they more frequently sat close together and groomed each other. Timid, isolated monkeys sought these connections more than did outgoing monkeys, becoming friends with the friends of their friends.

Researchers think these connections might have provided social support and valuable opportunities to rest in the newly scarce shade.

More Research Highlights...

Coloured transmission electron micrograph of two Streptococcus sanguinis bacteria

Genomic analysis identified starch-loving Streptococcus sanguinis bacteria (artificially coloured) in the mouths of modern humans and Neanderthals, but not in chimpanzees’ mouths. Credit: National Infection Service/Science Photo Library

Microbiome

Microbes in Neanderthals’ mouths reveal their carb-laden diet

Gunk on ancient teeth yields bacterial DNA, allowing scientists to trace the oral microbiome’s evolution.
Artist's concept of NASA's Voyager 1 spacecraft entering interstellar space

Data collected by the Voyager 1 spacecraft, which launched in 1977, has helped scientists to calculate the density of the interstellar plasma. Credit: NASA/JPL-Caltech

Astronomy and astrophysics

Voyager 1 captures faint ripples in the stuff between the stars

The first spacecraft to visit interstellar space has now become the first to make continuous measurements of waves in that remote realm.
Light micrograph of a human egg cell during fertilisation

As a human egg cell is fertilized, two chromosome-containing cellular structures (dotted circles, centre) merge into one — a process that often goes wrong. Credit: Pascal Goetgheluck/Science Photo Library

Developmental biology

The error-prone step at the heart of making an embryo

High-resolution imaging shows why the union between two sets of chromosomes goes awry as least as often as not.
Satellite image of broken iceberg B-44.

Dark water borders chunks of iceberg broken off a West Antarctica glacier. The melting of the region’s ice sheet could allow the bedrock to rise, sloughing water into the ocean. Credit: NASA

Climate change

Antarctic rocks on the rebound could raise sea level much more than expected

When the ice covering the west of the continent disappears, the bedrock could rise up and shove extra water into the ocean.
Monteverde Cloud Forest Preserve, Costa Rica

Mist wafts through the trees at the Monteverde Cloud Forest Biological Preserve in Costa Rica. Cloud forests around the world are threatened by development, wood collection and climate change. Credit: Stefano Paterna/Alamy

Conservation biology

Forests that float in the clouds are drifting away

Tropical cloud forests are safe havens for a vast range of creatures and plants, but they are under siege around the globe.
Illustration of a brown dwarf

A rapidly spinning brown dwarf (pictured, artist’s impression) tends to have narrow atmospheric bands; the faster the spin, the thinner the bands. Credit: NASA/JPL-Caltech

Astronomy and astrophysics

Dim stars that have failed at fusion are masters of spin

Three brown dwarfs whirl on their axes at a dizzying rate that might be close to the celestial speed limit for these bodies.
Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing

Search

Quick links