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Life Sciences - Palaeontology - 20.02.2020
Smaller animals faced surprisingly long odds in ancient oceans, Stanford study finds
Giant clams, the largest type of invertebrate included in the study, survive today on tropical reefs in the Pacific and Indian Oceans, but many species from this group are under threat. "People collect them to carve the shells, as with elephant ivory, and to eat the clam because of its supposedly aphrodisiac-like properties," says paleobiologist Noel Heim.

Palaeontology - Earth Sciences - 14.02.2020
Were dinosaurs warm blooded? Their eggshells say yes
Were dinosaurs warm blooded? Their eggshells say yes
A Yale-led study turns up the heat on a key question aboutádinosaurs' body temperature: Were they warm-blooded or cold-blooded? According to a new technique that analyzes the chemistry of dinosaur eggshells, the answer is warm. " Dinosaursásit at an evolutionary point between birds, which are warm-blooded, and reptiles, which are cold-blooded.

Physics - Palaeontology - 14.02.2020
Berkeley Lab Helps Reveal How Dinosaur Blood Vessels Can Preserve Through the Ages
Berkeley Lab Helps Reveal How Dinosaur Blood Vessels Can Preserve Through the Ages
A team of scientists led by Elizabeth Boatman at the University of Wisconsin Stout used X-ray imaging and spectromicroscopy performed at Berkeley Lab's Advanced Light Source (ALS) to demonstrate how soft tissue structures may be preserved in dinosaur bones - countering the long-standing scientific dogma that protein-based body parts cannot survive more than 1 million years.

Life Sciences - Palaeontology - 13.02.2020
Boom and bust for ancient sea dragons
Boom and bust for ancient sea dragons
A new study by scientists from the University of Bristol's School of Earth Sciences, shows a well-known group of extinct marine reptiles had an early burst in their diversity and evolution - but that a failure to adapt in the long-run may have led to their extinction. Ichthyosaurs were fish-like reptiles that first appeared about 250 million years ago and quickly diversified into highly capable swimmers, filling a broad range of sizes and ecologies in the early Mesozoic oceans.

Earth Sciences - Palaeontology - 17.01.2020
Dinosaurs died because of an asteroid impact
Dinosaurs died because of an asteroid impact
Researchers disprove theory of volcanic eruption as reason for mass deaths / Mineralogists and planetologists of the University of MŘnster participating in worldwide study in "Science' Was it volcanic eruptions in western India or an asteroid impact that caused the death of dinosaurs and many other animal species 66 million years ago? Researchers have been discussing this since the 1980s.

Earth Sciences - Palaeontology - 16.01.2020
In death of dinosaurs, it was all about the asteroid - not volcanoes
Volcanic activity did not play a direct role in the mass extinction event that killed the dinosaurs, according to an international, Yale-led team of researchers. It was all about the asteroid.

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