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
By feeding the birds, you could change their evolutionary fate
21 hours ago |
4 / 5 (4) |
6
Feeding birds in winter is a most innocent human activity, but it can nonetheless have profound effects on the evolutionary future of a species, and those changes can be seen in the very near term. That's ...
King crab family bigger than ever
Dec 02, 2009 |
3.7 / 5 (3) |
0
Sally Hall, a PhD student at the University of Southampton's School of Ocean and Earth Science (SOES) at the National Oceanography Centre, Southampton (NOCS) has formally described four new species of king ...
Some birds listen, instead of look, for mates
Dec 02, 2009 |
not rated yet |
0
Looks can be deceiving, but certain bird species have figured out that a voice can tell them most of what they need to know to find the right mate.
Bacterial gut symbionts are tightly linked with the evolution of herbivory in ants
Dec 01, 2009 |
5 / 5 (1) |
0
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 ...
Elevated CO2 levels may mitigate losses of biodiversity from nitrogen pollution
18 hours ago |
3.4 / 5 (5) |
1
Rising levels of carbon dioxide may overheat the planet and cause other environmental problems, but fears that rising CO2 levels could directly reduce plant biodiversity can be allayed, according to a new study by a University ...
High urea levels in chronic kidney failure might be toxic after all
Dec 02, 2009 |
not rated yet |
0
It is thought that the elevated levels of urea (the byproduct of protein breakdown that is excreted in the urine) in patients with end-stage kidney failure are not particularly toxic.
