Related topics: climate change , proceedings of the national academy of sciences , conservation , biodiversity , mammals
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 species
First volume of microbial encyclopedia published
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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 ...
Whiskers hold secrets of invasive minks
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Details of the lifestyle of mink, which escaped from fur farms and now live wild in the UK, have been revealed through analysis of their whiskers. Research led by the University of Exeter reveals more about the diet of this ...
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Scientists map speed of climate change
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New study finds that the average ecosystem will need to shift about a quarter mile per year to keep pace with global climate change.
Birds Play an Important Role in the Spread of Lyme Disease
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(PhysOrg.com) -- The range of Lyme disease is spreading in North America and it appears that birds play a significant role by transporting the Lyme disease bacterium over long distances, a new study by the Yale School of ...
Phragmites partners with microbes to plot native plants' demise
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University of Delaware researchers have uncovered a novel means of conquest employed by the common reed, Phragmites australis, which ranks as one of the world's most invasive plants.
Turtles' Christmas journey tracked by scientists
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The journeys of two marine turtles around the world's oceans will be available to view online this Christmas, thanks to a new research project launched by the University of Exeter.
Researchers reveal secrets of duck sex: It's all screwed up
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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 ...
Seeing how evolutionary mechanisms yield biological diversity
19 hours ago |
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An international team of scientists has discovered how changes in both gene expression and gene sequence led to the diversity of visual systems in African cichlid fish.
Sniffing out clues to dogs' compulsive behavior
21 hours ago |
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(PhysOrg.com) -- At first glance, a dog chasing its tail seems a harmless, if fruitless, pursuit. But for many dogs and their owners, the habit has a dark side, one that means endless hours and energy spent ...
Australian fossil unlocks secrets to the origin of whales
Other Sciences / Archaeology & Fossils
22 hours ago |
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Museum Victoria palaeobiologist Dr Erich Fitzgerald has made new groundbreaking discoveries into the origin of baleen whales, based on a 25 million year old fossil found near Torquay in Victoria.
Housing growth near national parks may limit conservation value
Dec 22, 2009 |
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The growth of housing near national parks, national forests and wilderness areas within the United States may limit the conservation value that these protected areas were designed to create in the first place, a new study ...
Fossil shelved for a century reworks carnivore family tree
Other Sciences / Archaeology & Fossils
Dec 22, 2009 |
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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. ...
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