News tagged with evolutionary relationships
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Search results for evolutionary relationships
Killer catfish? Venomous species surprisingly common, study finds
Dec 10, 2009 |
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2
(PhysOrg.com) -- Name all the venomous animals you can think of and you probably come up with snakes, spiders, bees, wasps and perhaps poisonous frogs. But catfish?
Researchers reveal secrets of duck sex: It's all screwed up
Dec 23, 2009 |
3.7 / 5 (9) |
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Female ducks have evolved an intriguing way to avoid becoming impregnated by undesirable but aggressive males endowed with large corkscrew-shaped penises: vaginas with clockwise spirals that thwart oppositely ...
Fossil shelved for a century reworks carnivore family tree
Other Sciences / Archaeology & Fossils
Dec 22, 2009 |
4.5 / 5 (8) |
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More than a hundred years after its discovery, the limbs and vertebrae of a fossil have been pulled off the shelf at the American Museum of Natural History to revise the view of early carnivore lifestyles. ...
First 'genetic map' of Han Chinese may aid search for disease susceptibility genes
Nov 25, 2009 |
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The first genetic historical map of the Han Chinese, the largest ethnic population in the world, as they migrated from south to north over evolutionary time. was published online today by the American Journal of Human Ge ...
Researchers Identify the Most Promiscuous Birds in the World
Dec 09, 2009 |
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(PhysOrg.com) -- UConn ornithologist Chris Elphick and his colleagues carried out DNA tests to discover the paternity of Saltmarsh Sparrow nestlings.
Early carnivorous dinosaurs crossed continents
Other Sciences / Archaeology & Fossils
Dec 10, 2009 |
4.3 / 5 (3) |
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Did the first dinosaurs wander across continents or stay put where they first evolved? The first dinosaurs evolved 230 million years ago when the continents were assembled into one landmass called Pangea. ...
Genomic toggle switches divide autoimmune diseases into distinct clusters
11 hours ago |
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Genomic switches can predispose an individual to one set of autoimmune disorders but protect the same person against another set of them, scientists at Stanford University School of Medicine have found.
Sun and moon trigger deep tremors on San Andreas Fault
Space & Earth / Earth Sciences
17 hours ago |
4.5 / 5 (2) |
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The faint tug of the sun and moon on the San Andreas Fault stimulates tremors deep underground, suggesting that the rock 15 miles below is lubricated with highly pressurized water that allows the rock to slip with little ...
First volume of microbial encyclopedia published
18 hours ago |
5 / 5 (1) |
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The Earth is estimated to have about a nonillion (1030) microbes in, on, around, and under it, comprised of an unknown but very large number of distinct species. Despite the widespread availability of microbi ...
List of search results for evolutionary relationships
