News tagged with reproduction
For monogamous sparrows, it doesn't pay to stray (but they do it anyway)
It's quite common for a female song sparrow to stray from her breeding partner and mate with the male next door, but a new study shows that sleeping around can be costly.
May 22, 2012 |
5 / 5 (2) |
8
|
Reproductive isolation driving evolution of species
Evolution of species remains a hot topic since Darwin’s theory of natural selection. A European initiative addressed the issue of speciation from the viewpoint of reproductive isolation.
May 16, 2012 |
5 / 5 (1) |
1
Female bugs overcome cost of traumatic sex
(Phys.org) -- The study of “sexual conflict” between males and females helps us to understand why sexual reproduction persists given that it can be costly, especially to females. One aspect of ...
May 09, 2012 |
2.5 / 5 (2) |
1
|
Battle of the sexes offers evolutionary insights
In a paper published May 3, in the journal Evolution, University of Cincinnati graduate student Karl Grieshop and Michal Polak, associate professor of biological sciences at UC, examine the role of genita ...
May 03, 2012 |
not rated yet |
3
|
Darwinian selection continues to influence human evolution
New evidence proves humans are continuing to evolve and that significant natural and sexual selection is still taking place in our species in the modern world.
Apr 30, 2012 |
4.3 / 5 (22) |
98
|
From embryonic stem cells, a sperm replacement and easier path to genetic modification
Researchers reporting in the April 27 issue of the journal Cell have devised a new and improved method for producing genetically modified animals for use in scientific research. The method relies on haploi ...
Apr 26, 2012 |
5 / 5 (1) |
0
|
Mantis males engage in riskier mating behavior if deprived of female access
Male praying mantises are more likely to engage in risky mating behavior if they have not had recent access to females, as reported Apr. 25 in the open access journal PLoS ONE. Female praying mantises are kn ...
Apr 25, 2012 |
not rated yet |
2
On Facebook, beauty is more than screen deep
Having attractive friends will make you more popular on Facebook, especially if you are a woman, according to a new study that takes Charles Darwin into the domain of cyber networking.
Other Sciences / Social Sciences
Apr 23, 2012 |
not rated yet |
0
First fruitful, then futile: Ammonites or the boon and bane of many offspring
Ammonites changed their reproductive strategy from initially few and large offspring to numerous and small hatchlings. Thanks to their many offspring, they survived three mass extinctions, a research team ...
Apr 23, 2012 |
not rated yet |
1
|
Study investigates aquatic parasites on fish
Researchers in the Czech Republic, Spain and the United Kingdom have successfully identified the cellular components and mechanisms that play a role in the proliferation of myxozoa, tiny aquatic parasites ...
Apr 23, 2012 |
1 / 5 (1) |
0
Lactating tsetse flies models for lactating mammals?
An unprecedented study of intra-uterine lactation in the tsetse fly, published 18 April 2012 in Biology of Reproduction's Papers-in-Press, reveals that an enzyme found in the fly's milk functions similarly in ...
Apr 18, 2012 |
5 / 5 (3) |
0
|
Egg-laying beginning of the end for dinosaurs
Their reproductive strategy spelled the beginning of the end: The fact that dinosaurs laid eggs put them at a considerable disadvantage compared to viviparous mammals. Together with colleagues from the Zoological ...
Other Sciences / Archaeology & Fossils
Apr 17, 2012 |
4.7 / 5 (12) |
2
|
International team unearths oldest-ever reptile embryos
Dating back 280 million years or so, the oldest known fossil reptile embryos have been unearthed in Uruguay and Brazil. They belong to the ancient aquatic reptiles, mesosaurs. The study of these exceptionally ...
Other Sciences / Archaeology & Fossils
Apr 12, 2012 |
5 / 5 (3) |
0
|
Ant queens lay more eggs as they age
Ant queens get better at laying eggs as they get older, researchers report in the Apr. 11 issue of the open access journal PLoS ONE. Furthermore, this high egg-laying rate did not shorten the queens' life spans, as would ...
Apr 11, 2012 |
not rated yet |
0
Sexual reproduction brings long-term benefits, study shows
Courtship rituals can be all-consuming, demanding time and effort – but now scientists have discovered why it might be worth it.
Apr 09, 2012 |
3.3 / 5 (6) |
8
|
Reproduction
Reproduction is the biological process by which new individual organisms are produced. Reproduction is a fundamental feature of all known life; each individual organism exists as the result of reproduction. The known methods of reproduction are broadly grouped into two main types: sexual and asexual.
In asexual reproduction, an individual can reproduce without involvement with another individual of that species. The division of a bacterial cell into two daughter cells is an example of asexual reproduction. Asexual reproduction is not, however, limited to single-celled organisms. Most plants have the ability to reproduce asexually.
Sexual reproduction requires the involvement of two individuals, typically one of each sex. Normal human reproduction is a common example of sexual reproduction.
For more information about Reproduction, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
