News tagged with animal species
Scientists produce first stem cells from endangered species
Starting with normal skin cells, scientists from The Scripps Research Institute have produced the first stem cells from endangered species. Such cells could eventually make it possible to improve reproduction ...
Sep 04, 2011 |
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Algae and bacteria hogged oxygen after ancient mass extinction, researchers say
(PhysOrg.com) -- After the biggest mass extinction in Earth's history -- 250 million years ago -- ocean algae and bacteria rebounded so fast that they consumed virtually all the oxygen in the sea, slowing ...
Space & Earth / Earth Sciences
Mar 25, 2011 |
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New pseudoscorpion discovered in Yosemite National Park (w/ Video)
(PhysOrg.com) -- It waits blindly in the darkness of granite caves in Yosemite National Park, moving little to conserve energy.
Nov 30, 2010 |
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Giant snakes, fish among spectacular species found in Amazon
Spectacular species previously unknown to the outside world are being discovered in the Amazon rainforest at a rate of one every three days, environment group WWF said in a report published Tuesday.
Oct 26, 2010 |
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New study documents use of hormone progesterone in simple microscopic aquatic animals
A new study shows that humans and tiny aquatic animals known as rotifers have something important in common when it comes to sex.
Jun 14, 2010 |
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Trees evolved camouflage defense against long extinct predator: First evidence of camouflage defense in plants
(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 ...
Jul 22, 2009 |
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New study shows that in horse play, adult-to-young ratio is key
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 ...
Mar 17, 2009 |
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Black wolves: The first genetically modified predators?
Emergence of black-colored wolves is the direct result of humans raising dogs as pets and beasts of burden, according to new research by a University of Calgary biologist published today by the prestigious ...
Biology /
Feb 05, 2009 |
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Nearly one-tenth of hemisphere's mammals unlikely to outrun climate change: study
A safe haven could be out of reach for 9 percent of the Western Hemisphere's mammals, and as much as 40 percent in certain regions, because the animals just won't move swiftly enough to outpace climate change. ...
May 14, 2012 |
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New purple crab species found in Philippines
Four new species of freshwater crab, bright purple in colour, have been discovered in the biologically diverse but ecologically-threatened Philippines, the man who found them said Saturday.
Apr 22, 2012 |
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Ravens remember relationships they had with others
In daily life we remember faces and voices of several known individuals. Similarly, mammals have been shown to remember calls and faces of known individuals after a number of years. Markus Boeckle and Thomas ...
Apr 19, 2012 |
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Glass sponge as a living climate archive
(PhysOrg.com) -- Climate scientists have discovered a new archive of historical sea temperatures. With the help of the skeleton of a sponge that belongs to the Monorhaphis chuni species and that lived in the ...
Space & Earth / Earth Sciences
Apr 05, 2012 |
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The Viking journey of mice and men
House mice (Mus musculus) happily live wherever there are humans. When populations of humans migrate the mice often travel with them. New research published in BioMed Central's open access journal BMC Evolutionary Biology h ...
Mar 19, 2012 |
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Extensive taste loss in mammals: Animals live in surprisingly different sensory worlds
Scientists from the Monell Center report that seven of 12 related mammalian species have lost the sense of sweet taste. As each of the sweet-blind species eats only meat, the findings demonstrate that a liking ...
Mar 12, 2012 |
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New mathematical model explains how hosts survive parasite attacks
In nature, how do host species survive parasite attacks? This has not been well understood, until now. A new mathematical model shows that when a host and its parasite each have multiple traits governing their ...
Mar 04, 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.
