News tagged with species
Noxious nanotech: Water-borne nanomaterials promote multidrug-resistance gene transfer
(PhysOrg.com) -- The arms race between effective antibiotic prophylaxis and closely related strains or species of bacteria is continually escalating. Bacteria can quickly develop genetic resistance to a range ...
Nanotechnology / Bio & Medicine
Mar 30, 2012 |
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Escalating arms race: Predatory sea urchins drive evolution
(Phys.org) -- Nature teems with examples of evolutionary arms races between predators and prey, with the predator species gradually evolving a new mode of attack for each defensive adaptation that arises in ...
Apr 17, 2012 |
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Single gene mutation can sweep through bacterial population, opening the door for the concept of 'species'
Bacteria are the most populous organisms on the planet. They thrive in almost every known environment, adapting to different habitats by means of genetic variations that provide the capabilities essential ...
Apr 05, 2012 |
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'Lucy' lived among close cousins: Discovery of foot fossil confirms two human ancestor species co-existed
(PhysOrg.com) -- A new fossil discovery from Eastern Africa called the Burtele foot indicates Australopithecus afarensis, an early relative of modern humans, may not have been the only hominin to walk the pl ...
Other Sciences / Archaeology & Fossils
Mar 28, 2012 |
4.3 / 5 (11) |
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Vertebrates share ancient neural circuitry for complex social behaviors: study
Humans, fish and frogs share neural circuits responsible for a diversity of social behavior, from flashy mating displays to aggression and monogamy, that have existed for more than 450 million years, biologists at The University ...
May 31, 2012 |
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Sex: it's a good thing, evolutionarily speaking
(Phys.org) -- Sure, sex may be fun, but it’s a lot of work, and the payoff is by no means certain. Scientists have speculated for a long time on why all living things don’t simply make like amoebas ...
May 30, 2012 |
4 / 5 (4) |
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Killer fungus spreads to endangered gray bats: US
A deadly fungus that has wiped out large populations of bats in North America has spread to a new species, the endangered gray bat, US wildlife officials said Tuesday.
May 29, 2012 |
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Land and sea species differ in climate change response: study
(Phys.org) -- Marine and terrestrial species will likely differ in their responses to climate warming, new research by Simon Fraser University and Australia’s University of Tasmania has found.
May 27, 2012 |
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Global warming winner: Once rare butterfly thrives
(AP) -- Global warming is rescuing the once-rare brown Argus butterfly, scientists say.
May 24, 2012 |
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Gourmet butterflies speed north: study
A new study led by scientists in the Department of Biology at the University of York has shown how a butterfly has changed its diet, and consequently has sped northwards in response to climate change. Their study is published ...
May 24, 2012 |
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Deep sea animals stowaway on submarines and reach new territory
Marine scientists studying life around deep-sea vents have discovered that some hardy species can survive the extreme change in pressure that occurs when a research submersible rises to the surface. The team's ...
May 24, 2012 |
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Project to examine 'Yeti' DNA
(Phys.org) -- A new collaboration between Oxford University and the Lausanne Museum of Zoology will use the latest genetic techniques to investigate organic remains that some have claimed belong to the ‘Yeti’ ...
May 23, 2012 |
4.3 / 5 (4) |
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Light pollution transforming insect communities
(Phys.org) -- Street lighting is transforming communities of insects and other invertebrates, according to research by the University of Exeter. Published today in the journal Biology Letters, the study shows ...
May 23, 2012 |
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For monogamous sparrows, it doesn't pay to stray (but they do it anyway)
It's quite common for a female song sparrow to stray from her breeding partner and mate with the male next door, but a new study shows that sleeping around can be costly.
May 22, 2012 |
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More plant species responding to global warming than previously thought
(Phys.org) -- Far more wild plant species may be responding to global warming than previous large-scale estimates have suggested.
May 22, 2012 |
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Species
In biology, a species is:
There are many definitions of what kind of unit a species is (or should be). A common definition is that of a group of organisms capable of interbreeding and producing fertile offspring, and separated from other such groups with which interbreeding does not (normally) happen. Other definitions may focus on similarity of DNA or morphology. Some species are further subdivided into subspecies, and here also there is no close agreement on the criteria to be used.
For more information about Species, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
