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Petrified wood
Petrified wood is a type of fossil: it exists of fossil wood where all the organic materials have been replaced with minerals (most often a silicate, such as quartz), while retaining the original structure of the wood.
Note: The above text is excerpted from the Wikipedia article "Petrified wood", which has been released under the GNU Free Documentation License.
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Fossils & Ruins News
January 18, 2025
Jan. 17, 2025 — Human ancestors like Australopithecus -- which lived around 3.5 million years ago in southern Africa -- ate very little to no meat, according to new research. This conclusion comes from an analysis of nitrogen isotope isotopes in the fossilized ...
Jan. 15, 2025 — Scientists have identified fossils of snow leopards. The discovery has allowed them to trace the evolutionary history of the species during the Quaternary period and to propose how it dispersed from ...
Jan. 15, 2025 — A groundbreaking study finds evidence that land was inherited through the female line in Iron Age Britain, with husbands moving to live with their wife's community. This is believed to be the first time such a system has been documented in European ...
Jan. 13, 2025 — Researchers have discovered what may be the world's oldest three-dimensional map, located within a quartzitic sandstone megaclast in the Paris ...
Latest Headlines
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Jan. 17, 2025 — New research emphasizes that studying the impacts of past tropical storms can help communities better prepare for future storms. A key part of the study is analyzing the types and quantities of ...
Jan. 16, 2025 — In an interdisciplinary and transdisciplinary study, an international team examined the social risks for Arctic regions associated with thawing permafrost. They identified five key risks related to ...
Jan. 16, 2025 — Researchers carried out an archeogenetic study of human remains from more than 700 individuals from the Early Middle Ages. Two large burial sites, Modling and Leobersdorf, have been genetically ...
Jan. 16, 2025 — 4,900 years ago, a Neolithic people on the Danish island Bornholm sacrificed hundreds of stones engraved with sun and field motifs. Archaeologists and climate scientists can now show that these ...
Jan. 16, 2025 — Previous studies have posited that the mass extinction that wiped the dinosaurs off the face of the Earth was caused by the release of large volumes of sulfur from rocks within the Chicxulub impact ...
Jan. 16, 2025 — The synchronization of data from two natural climate archives -- a speleothem from the Herbstlabyrinth Cave in Hesse (Germany) and ice cores from ...
Jan. 16, 2025 — A new study has revealed the alarming extent glaciers have shrunk over the past 40 years in a global warming hotspot -- and the biggest retreat has ...
Jan. 16, 2025 — A long-standing question about when archaic members of the genus Homo adapted to harsh environments such as deserts and rainforests has been answered in a new research ...
Jan. 9, 2025 — Prehistoric kangaroos in southern Australia had a more general diet than previously assumed, giving rise to new ideas about their survival and resilience to climate change, and the final extinction ...
Jan. 15, 2025 — A new study outlines the ways by which city life may be shaping the evolution of urban coyotes, the highly adaptable carnivores spotted in alleyways from Berkeley, Calif., to the Bronx, in New ...