Species
hideIn 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.
News tagged with animal species
Researchers Reveal That Environmentally Devastating Zebra Mussels Can Be Controlled
Dec 14, 2009 |
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Cloaked in a delicate brown and cream striped shell and measuring a mere inch in length, the zebra mussel certainly doesn’t look ominous. This tiny invasive species, however, has wreaked havoc in waterways ...
List of 'unsung' wildlife affected by climate change released
Dec 07, 2009 |
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The Wildlife Conservation Society today released a list of animals facing new impacts by climate change, some in strange and unexpected ways.
Trees evolved camouflage defense against long extinct predator: First evidence of camouflage defense in plants
Jul 22, 2009 |
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(PhysOrg.com) -- Many animal species such as snakes, insects and fish have evolved camouflage defences to deter attack from their predators. However research published in New Phytologist has discovered that t ...
The faster they come: How social status is negotiated among fishes
Jun 28, 2009 |
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Being the neighbourhood bully has its obvious advantages, but it becomes useless if your authority is continuously being challenged. In many animal species, however, stable hierarchies are routinely formed in which some individuals ...
Playing Dead Increases Survival Rate at the Expense of Active Neighbors
Apr 30, 2009 |
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A study published in the Proceeding of The Royal Society B entitled "Tonically Immobilized Selfish Prey Can Survive By Sacrificing Other", authored by researchers at Okayama University in Japan point out de ...
Our penchant for rarity could threaten conservation efforts
Apr 22, 2009 |
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Rare plant and animal species are like rare stamps or coins: they are perceived to be inherently more valuable to people, whatever they look like. Researchers Elena Angulo and Franck Courchamp, from Université de Paris-Sud, ...
Food choices evolve through information overload
Medicine & Health / Psychology & Psychiatry
Mar 23, 2009 |
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Ever been so overwhelmed by a huge restaurant menu that you end up choosing an old favourite instead of trying something new?
New study shows that in horse play, adult-to-young ratio is key
Mar 17, 2009 |
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Adults of many animal species play a crucial role in the social development of youngsters. A new study published March 18 in the online, peer-reviewed, open-access journal PLoS ONE, reveals that the ratio of adults to you ...
Culture skews human evolution
Mar 12, 2009 |
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(PhysOrg.com) -- The rise of agriculture 10,000 years ago meant the end of the hunter-gatherer lifestyle for which human beings had been optimized by millions of years of evolution and the beginning of an ...
Research on Bird Song Could Lead to a Refinement of a Darwinian Theory
Biology /
Jan 30, 2009 |
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For Williams College biology professor Heather Williams, the songs birds sing are more than a pleasant part of a spring day. They are a window into how communication works in the natural world. A birdsong is more than just ...
