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evolution

A large tree with pink blossoms towers above a forest of other green trees.
Posted inNews

Some Tropical Trees Benefit from Lightning Strikes

Katherine Kornei, Science Writer by Katherine Kornei 12 May 2025

Direct lightning strikes cause minimal damage to Dipteryx oleifera. But these same strikes effectively kill parasitic vines and neighboring trees that compete with the species for light and nutrients.

Red-tinted water flows in a shallow stretch of river, with a rocky shoreline and forested hillslope in the background.
Posted inScience Updates

How Great was the “Great Oxidation Event”?

by Aubrey Zerkle 30 July 202416 January 2025

Geochemical sleuthing amid acid mine runoff suggests that scientists should rethink an isotope signal long taken to indicate low levels of atmospheric oxygen in Earth’s deep past.

Illustration of early hominins arriving in a multibiome mosaic landscape
Posted inNews

Humans Adapted to Diverse Habitats as Climate and Landscapes Changed

by Deepa Padmanaban 10 July 202331 October 2023

Long-term changes in Earth’s climate affected the dispersal of human ancestors and their adaptation to diverse habitats, a new study finds.

A crew of about a dozen people handle a sediment core at their scientific drilling site at Chew Bahir in Ethiopia.
Posted inNews

Did a Chaotic Climate Drive Human Evolution?

by Elise Cutts 7 November 202231 October 2023

A new 620,000-year climate record from East Africa reveals dramatic swings between wet and dry conditions that may have influenced human evolution.

Magnified black-and-white images of two fossils.
Posted inResearch Spotlights

Fluid Dynamics of Tiny, Ancient Marine Animals

Sarah Stanley, Science Writer by Sarah Stanley 2 November 202217 February 2023

Water flow simulations using 3D models of fossils yield new clues to the evolution of organisms known as medusozoans.

A blue-gray river runs through a steep mountainous terrane, with the slopes nearest the river coated in green grasses, plants, and coniferous trees.
Posted inNews

What Can Zircons Tell Us About the Evolution of Plants?

by Alka Tripathy-Lang 5 October 202218 October 2022

The versatile mineral could contain evidence of the evolution of land plants and their effect on the sedimentary system.

Artistic impression of an orange-colored early Earth
Posted inNews

Early Life Learned to Love Oxygen Long Before It Was Cool

by Jennifer Schmidt 16 September 202221 February 2023

Laboratory experiments show that earthquakes may have helped early life evolve in an oxygen-free world.

Aerial photo of a squared-off archaeological dig
Posted inNews

When Did Archaic Humans Control Fire?

Mary Caperton Morton, Science Writer by Mary Caperton Morton 15 December 202031 October 2023

A familiar geochemical technique shines a new spotlight on early hominin use of fire.

A photograph of an Andean páramo that is awash in clouds.
Posted inNews

The Flickering Sky Islands

Lucas Joel by L. Joel 2 August 20197 February 2023

In the Andes, islands in the sky flicker, and evolution kicks into high gear.

Fossil skeleton of a woolly rhinoceros
Posted inNews

Fossils Provide New Clues to Tibetan Plateau’s Evolution

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 12 December 201726 January 2023

The bones of ancient rhinos, elephants, and fish constrain when the Tibetan Plateau rose high enough to prevent migration, a move that forced animals to adapt to high-altitude conditions.

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