Related topics: proceedings of the national academy of sciences , climate change , fish
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
Time in a bottle: Scientists watch evolution unfold
Oct 18, 2009 |
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A 21-year Michigan State University experiment that distills the essence of evolution in laboratory flasks not only demonstrates natural selection at work, but could lead to biotechnology and medical research ...
Before 'Lucy,' there was 'Ardi': Oldest hominid skeleton provides new evidence for human evolution (w/ Video)
Other Sciences / Archaeology & Fossils
Oct 01, 2009 |
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In a special issue of Science, an international team of scientists has for the first time thoroughly described Ardipithecus ramidus, a hominid species that lived 4.4 million years ago in what is now Ethiop ...
Scientists find a biological 'fountain of youth' in new world bat caves
Jun 30, 2009 |
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Scientists from Texas are batty over a new discovery which could lead to the single most important medical breakthrough in human history -- significantly longer lifespans. The discovery, featured on the cover of the July ...
Beyond sunlight: Explorers census 17,650 ocean species between edge of darkness and black abyss (w/ Video)
Nov 22, 2009 |
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Census of Marine Life scientists have inventoried an astonishing abundance, diversity and distribution of deep sea species that have never known sunlight - creatures that somehow manage a living in a frigid ...
Study provides insights into how climate change might impact species' geographic ranges
Jun 23, 2009 |
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A new study by a team of researchers led by Jessica Hellmann, assistant professor of biological sciences at the University of Notre Dame, offers interesting insights into how species may, or may not, change their geographic ...
Charles Darwin really did have advanced ideas about the origin of life
Oct 27, 2009 |
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When Charles Darwin published The Origin of Species 150 years ago, he deliberately avoided the subject of the origin of life. This, coupled with the mention of the 'Creator' in the last paragraph of the book, ...
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 ...
Scientists 'rebuild' giant moa using ancient DNA
Jul 01, 2009 |
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(PhysOrg.com) -- Scientists have performed the first DNA-based reconstruction of the giant extinct moa bird, using prehistoric feathers recovered from caves and rock shelters in New Zealand.
Primate archaeology sheds light on human origins
Other Sciences / Archaeology & Fossils
Jul 15, 2009 |
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A University of Calgary archaeologist who is one of the few researchers in the world studying the material culture of human beings' closest living relatives - the great apes - is joining his colleagues in ...
Bipedal humans came down from the trees, not up from the ground (w/ Video)
Aug 10, 2009 |
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A detailed examination of the wrist bones of several primate species challenges the notion that humans evolved their two-legged upright walking style from a knuckle-walking ancestor.
Nature parks can save species as climate changes
Jun 01, 2009 |
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Retaining a network of wildlife conservation areas is vital in helping to save up to 90 per cent of bird species in Africa affected by climate change, according to scientists.
'Hobbits' are a new human species -- according to the statistical analysis of fossils
Other Sciences / Archaeology & Fossils
Nov 19, 2009 |
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Researchers from Stony Brook University Medical Center in New York have confirmed that Homo floresiensis is a genuine ancient human species and not a descendant of healthy humans dwarfed by disease. Using ...
Report documents the risks of giant invasive snakes in the US
Oct 13, 2009 |
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Five giant non-native snake species would pose high risks to the health of ecosystems in the United States should they become established here, according to a U.S. Geological Survey report released today.
Scientists find fossil bones of smallest dinosaur
Other Sciences / Archaeology & Fossils
Oct 21, 2009 |
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(PhysOrg.com) -- A new dinosaur species, Fruitadens haagarorum, is the smallest dinosaur ever discovered from North America. The tiny Fruitadens weighed less than a kilogram (two pounds) and was just 70 c ...
Humans 'damaging the oceans': research
Jul 29, 2009 |
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Mounting evidence that human activity is changing the world's oceans in profound and damaging ways is outlined in a new scientific discussion paper released today.
