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
Bacterial gut symbionts are tightly linked with the evolution of herbivory in ants
15 hours ago |
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Broadly speaking, ants have two different feeding strategies. A large proportion of all species are "carnivorous," meaning that they are generalist predators feeding on other small animals or scavenging on ...
Variable Temperatures Leave Insects wtih a Frosty Reception
Nov 25, 2009 |
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(PhysOrg.com) -- For the first time, scientists at The University of Western Ontario have shown that insects exposed to repeated periods of cold will trade reproduction for immediate survival.
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Rhino poaching surges in Asia, Africa
7 hours ago |
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Rhino poaching worldwide is on the rise, according to a new report by TRAFFIC and the International Union for the Conservation of Nature (IUCN).
Why females live longer than males: is it due to the father's sperm?
7 hours ago |
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Researchers in Japan have found that female mice produced by using genetic material from two mothers but no father live significantly longer than mice with the normal mix of maternal and paternal genes. Their findings provide ...
Acid test: Study reveals both losers and winners of CO2-induced ocean acidification
Space & Earth / Earth Sciences
11 hours ago |
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(PhysOrg.com) -- As the world’s seawater becomes more acidic due to rising atmospheric carbon dioxide, some shelled marine creatures may actually become bigger and stronger, according to a new study.
New forensic technique gives clues about sharks from bite damage
14 hours ago |
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Hit-and-run attacks by sharks can be solved with a new technique that identifies the culprits by the unique chomp they put on their victims, according to a University of Florida researcher and shark expert.
Researchers create first transgenic prairie voles
14 hours ago |
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Researchers at the Yerkes National Primate Research Center, Emory University, have successfully generated the first transgenic prairie voles, an important step toward unlocking the genetic secrets of pair bonding. The future ...
A modernized methodology for obtaining new varieties of potato
16 hours ago |
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Research into the potato tuber at the Basque Institute for Agricultural Research and Development and at the NEIKER-Tecnalia Technology Centre has, in recent years, focused on the development of new varieties of potato adapted ...
How did flowering plants evolve to dominate Earth?
16 hours ago |
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To Charles Darwin it was an 'abominable mystery' and it is a question which has continued to vex evolutionists to this day: when did flowering plants evolve and how did they come to dominate plant life on earth? Today a study ...
First comprehensive review of the state of Antarctica's climate
Space & Earth / Earth Sciences
21 hours ago |
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The first comprehensive review of the state of Antarctica's climate and its relationship to the global climate system is published this week by the Scientific Committee on Antarctic Research (SCAR). The review - Antarctic ...
Scientists trace shark fins to their geographic origin for first time using DNA tools
22 hours ago |
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Millions of shark fins are sold at market each year to satisfy the demand for shark fin soup, a Chinese delicacy, but it has been impossible to pinpoint which sharks from which regions are most threatened ...
Grant to help zoo visitors learn more about science with their cell phones
Nov 30, 2009 |
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Zoo visitors may soon use their cell phones to "Call the Wild" as part of a project led by University of Florida researchers to help the public learn more about the nature of science.
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