A Princeton University geoscientist who has stirred controversy with her studies challenging a popular theory that an asteroid wiped out the dinosaurs has compiled powerful new evidence asserting her position.
Earth Sciences
May 4, 2009
28
0
Dinosaurs were dying out much earlier than the mass extinction event 65 million years ago, Natural History Museum scientists report in the Proceedings of the Royal Society journal today.
Archaeology
Apr 30, 2009
5
1
(PhysOrg.com) -- The enduringly popular theory that the Chicxulub crater holds the clue to the demise of the dinosaurs, along with some 65 percent of all species 65 million years ago, is challenged in a paper to be published ...
Earth Sciences
Apr 27, 2009
14
5
(PhysOrg.com) -- New scientific findings by geologist Robert Gastaldo of Colby College in Waterville, Maine, and colleagues call into question popular theories about the largest mass extinction in Earth's history.
Earth Sciences
Mar 2, 2009
3
1
No birds alive today have teeth. But that wasn't always the case; many early fossil birds had beaks full of sharp, tiny teeth. In a paper in the journal Cretaceous Research, scientists have described a new species of fossil ...
Plants & Animals
Mar 5, 2024
0
255
Oxygen is fundamental to sustaining life on Earth. The ocean gets its oxygen from its uppermost layers in contact with the atmosphere. As our planet continues to warm, the ocean is gradually losing its capacity to absorb ...
Earth Sciences
Feb 15, 2024
0
180
Dinosaurs' range of locomotion made them incredibly adaptable, University of Bristol researchers have found. In a new study, published today in Royal Society Open Science, findings show that the first dinosaurs were simply ...
Paleontology & Fossils
Feb 7, 2024
0
111
Researchers have described a Japanese mosasaur the size of a great white shark that terrorized Pacific seas 72 million years ago.
Evolution
Dec 12, 2023
0
183
Diverse and full of sea life, the Earth's Devonian era—taking place more than 370 million years ago—saw the emergence of the first seed-bearing plants, which spread as large forests across the continents of Gondwana and ...
Evolution
Dec 6, 2023
0
388
Microfossils from Western Australia may capture a jump in the complexity of life that coincided with the rise of oxygen in Earth's atmosphere and oceans, according to an international team of scientists.
Evolution
Nov 7, 2023
0
225
