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bats

Seen from below, a group of bats hang from a rocky cave ceiling. One has its mouth wide open in a yawn.
Posted inResearch Spotlights

Bat Poop Records Fire History

by Rebecca Dzombak 31 October 20244 November 2024

Charcoal stored in preserved guano gives researchers a new way to reconstruct regional fire histories.

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.

Scientist with guano core.
Posted inNews

Bat Guano: A Possible New Source for Paleoclimate Reconstructions

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 14 December 20164 October 2021

Nitrogen isotopes within samples of bat excrement accurately reflect modern precipitation patterns. So could guano serve as a paleoclimate record?

Posted inNews

How Bat Breath and Guano Can Change the Shapes of Caves

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 9 November 201513 October 2022

Researchers working in caves in Borneo and elsewhere are finding evidence that biological processes shape many tropical caves by slowly eating away at surrounding rock.

A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

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Research Spotlights

What Could Happen to the Ocean’s Carbon If AMOC Collapses

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Editors' Highlights

Frictional Properties of the Nankai Accretionary Prism

11 December 20259 December 2025
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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