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animals

St. Barthélemy Island, viewed from the Coco Islet
Posted inScience Updates

By Land or Sea: How Did Mammals Get to the Caribbean Islands?

by P. Münch, P.-O. Antoine and B. Marcaillou 19 November 202022 August 2023

A multidisciplinary team is jointly investigating mammal evolution and subduction dynamics to unravel how flightless land mammals migrated to the Greater Antilles and other Caribbean islands.

A 3D computer illustration of Hesperosuchus, an extinct genus of crocodylomorph reptiles
Posted inNews

A Little-Known Mass Extinction and the “Dawn of the Modern World”

by S. Norris 9 November 202027 October 2022

Volcanic eruptions in what is now western Canada may have triggered a million years of rain and a mass extinction that launched the reign of the dinosaurs.

A white-crowned sparrow sings while perched on a branch
Posted inNews

Birds Sang a New Song During the Pandemic

Katherine Kornei, Science Writer by Katherine Kornei 5 November 20208 September 2022

White-crowned sparrows in the San Francisco Bay Area sang differently during California’s COVID-19-induced shutdown, recordings have revealed.

Example of a modern-day rain forest ecosystem
Posted inNews

Finding Prehistoric Rain Forests by Studying Modern Mammals

Hannah Thomasy, Science Writer by Hannah Thomasy 4 November 20203 July 2023

Mammal teeth store a record of the plants they ate, providing clues about the ecosystems in which they lived.

A polar bear sits on its haunches on sea ice in the east Greenland Sea.
Posted inNews

Polar Bears to Vanish from Most of the Arctic This Century

Cheryl Katz, Science Writer by Cheryl Katz 29 October 202029 April 2022

A “timelines of risk” model shows when and where population collapse begins as sea ice wanes in our warming future.

Illustrations of Bigfoot, a manatee, a giant sloth, and a mermaid
Posted inNews

Podcast: Mythical Monsters and Their Real-Life Inspirations

by S. M. Hanlon 28 October 202010 March 2023

This Halloween season, explore the connections between mythical monsters like Bigfoot and the Kraken and the creatures on which they’re based.

Three dolphins lie in mud and shallow water along a shoreline
Posted inResearch Spotlights

Geomagnetic Storms Probably Don’t Cause Mass Cetacean Strandings

by Morgan Rehnberg 28 October 20207 March 2023

Solar-induced geomagnetic activity and mass strandings of whales and dolphins on shorelines both show seasonal patterns, but the beachings likely result from multiple environmental factors.

A bunch of jellyfish
Posted inResearch Spotlights

Jellies Transfer a Significant Amount of Carbon to the Deep Ocean

Rachel Fritts, Science Writer by Rachel Fritts 14 October 202016 March 2023

Jellyfish and sea salps aren’t getting the credit they deserve for their role in ocean carbon cycling, according to a new study.

Cave entrance with vegetation in background
Posted inNews

Bat Guano Traces Changes in Agriculture and Hurricane Activity

Katherine Kornei, Science Writer by Katherine Kornei 13 October 202010 March 2023

Researchers hiked and rappeled into two caves in Jamaica to collect over 40 kilograms of excrement.

A mosquito feeds on a host.
Posted inNews

Hydrology Helps Identify Future Malaria Hot Spots

Hannah Thomasy, Science Writer by Hannah Thomasy 12 October 202011 January 2022

Complex hydrological processes—not just the amount of rainfall—help determine where malaria-transmitting mosquitoes can thrive.

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Features from AGU Publications

Research Spotlights

Early Apes Evolved in Tropical Forests Disturbed by Fires and Volcanoes

12 June 202511 June 2025
Editors' Highlights

Coverage Factors Affect Urban CO2 Monitoring from Space

12 June 202512 June 2025
Editors' Vox

Inside Volcanic Clouds: Where Tephra Goes and Why It Matters

16 June 202512 June 2025
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