Tag: "extinct" at biology news
An ancient bathtub ring of mammoth fossils
...teeth tusks, femurs and any and all other parts of extinct
mammoths left by massive Ice Age floods in southeastern Washington. The fossils, in some cases whole skeletons of Mammathus columbi, the Columbian mammoth, were deposited in the hillsides of what are now the Yakima, Columbia and Walla Walla valleys...
New petroleum-degrading bacteria found at Rancho La Brea Tar Pits in Los Angeles
... having the largest and most diverse assemblage of extinct
ice age plants and animals in the world. "The living bacteria contained in the asphalt are most likely the progeny of soil microorganisms that were trapped in the asphalt, although some may also have been carried to the surface in the heavy oil th...
Dinosaur hearing, listening to muscle noise, quieter cubicles
..., and even to reconstruct the hearing abilities of extinct
animals such as dinosaurs and early mammals. Acco...inner ears of archosaurs (birds, crocodilians, and extinct
dinosaurs) have highly similar structures. The researchers found a relationship between the body ma...
Journal details how global warming will affect the world's fisheries
...odels show that the Baltic cod is likely to become extinct
in the next 50 years. Peter Golubtsov, a physicist from Moscow State University, and Robert McKelvey, a mathematician from University of Montana, discuss environmental variability causing variations in growth and migrations of a fish stock shared ...
Oregon researchers involved in new Clovis-age impact theory
...T event. Kennett said that 35 animal genera went extinct
at the end of the Pleistocene, with at least 15 clearly being wiped out close to 12,900 years ago. There would have been major ecological shifts, driving Clovis survivors into isolated groups in search of food and warmth. There is evidence, he said, ...
Climate change threatens wild relatives of key crops
... the 108 wild potato species analyzed could become extinct
as the result of climate change. Most of those that remained would be confined to much smaller areas, further eroding their capacity to survive. The study also examined wild relatives of cowpea, a nutritious legume farmed widely in Africa. It found ...
Lessons from the orangutans: Upright walking may have begun in the trees
...e Sumatran orangutan population is predicted to be extinct
in the next decade if habitat degradation continues. Our research further highlights the need for protecting these animals," she said....
Researchers find 24 species believed new to science in Suriname rainforest
...re armored catfish, Harttiella crassicauda, feared extinct
because gold mining activities had contaminated a creek where it was last seen more than 50 years ago. Overall, the survey recorded 467 species at the two sites, including large cats such as panther and puma, various monkeys, and a range of reptile...
Caribbean frogs started with a single, ancient voyage on a raft from South America
...ecies included in the study now are believed to be extinct
because of habitat degradation and possibly other causes such as climate change. A recent global assessment of amphibians found that the Caribbean Islands have the highest proportion of amphibian species threatened with extinction. Hedges and coaut...
Ancient DNA traces the woolly mammoth's disappearance
...DNA lifted from the bones, teeth, and tusks of the extinct
mammoths revealed a genetic signature of a range e...e new study, Barnes and Listers team looked to the extinct
woolly mammoth. What they found, however, was an interesting pattern, not like those of the other sp...
Caribbean frog populations started with single, ancient voyage on South American raft
...e species included in the study are believed to be extinct
because of habitat degradation and other causes. "This study is a valuable contribution to our understanding of the evolutionary and biogeographic history of one of the world's most complicated places geographically, the Caribbean," said Patrick He...
Massive herds of animals found to still exist in Southern Sudan
...iscovered populations of beisa oryx, thought to be extinct
in the region, and the Nile lechwe, which is antel..., in Southern National Park. This species has gone extinct
over much of its former range, so it is very good news that what we believe is a viable population h...
MU researchers to study the status of black bears in Missouri
...nd 19th centuries, but have been considered almost extinct
in Missouri since the late 19th century. The results of the MU study will be used by the Missouri Department of Conservation to help manage Missouris black bear population. The researchers Kaitlyn Faries, a senior biology and chemistry major, and ...
The kapok connection -- Study explains rainforest similarities
...plant communities. "This tree has become locally extinct
in parts of the Peruvian Amazon as a result of overexploitation for plywood," Dick said. "It might be saved from widespread extinction by continuing to invade new land areas through oceanic dispersal."...
Reconstructing the biology of extinct species: A new approach
...locomotion. "Now we have a way to reconstruct how extinct
species moved that is completely independent of analysis of the limb structure. For the first time, we can test our previous conclusions using a new source of information." ...
UI anthropologist, colleagues discover remains of earliest giant panda
...boo forests. It is often found associated with the extinct
elephant-like creature, Stegodon, and the giant extinct
ape, Gigantopithecus. Today's giant panda is isolated in mountainous upland bamboo forests, partly d...
Ancient retrovirus sheds light on modern pandemic
...iviral protein TRIM5a effectively neutralizes this extinct
retrovirus, which never successfully fixed into the human genome. "However, while TRIM5a may have served humans well millions of years ago, the antiviral protein does not seem to be good at defending against any of the retroviruses that currently inf...
Specialized, bone-crushing wolves of Alaska disappeared long ago
... Current Biology, a publication of Cell Press. The extinct
Alaskan wolves had robust bodies, strong jaws, and... wolves were specialized hunters and scavengers of extinct
megafauna. The ancient wolves had relatively more massive teeth and broader skulls with shorter sn...
March of the giant penguins
...story, and colleagues studied two newly discovered extinct
species of penguins. Peruvian paleontologists disc...ssly elongated beak with features not known in any extinct
or living species. This species beak is sharply pointed, almost spear-like in appearance, and its ne...
Glimmer of hope for Tahitian tree snails' survival
...described Society Islands partulid tree snails are extinct
in the wild, following the introduction of the carnivorous rosy wolf snail, he said. The predatory intruder was meant to control yet another snail, the giant African land snail, which was presumably brought to the island as a potential food source. I...
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