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30
| STORIES ABOUT: reproduction |
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| Males Over 35 Less Likely to Have Children |  | Even in these modern days, when the lifespan of humans surpasses an all time record, women over 40 are generally believed too old to have babies, yet somehow there is no mention of the limit age men become less fertile at. If 40 looked like a rather young age to stop having children, a new study now shows that men older than 35 have significantly less chances of becoming fathers. The study involved 12,200 couples with fertility problems.
... [read more >>] | | 07 July 2008, 05:08GMT | (c) 2008 Softpedia |
| 'Perfectly' Designed Children with Three Parents Could Be Born within Three Years |  | Sexual reproduction may be a lot of fun, but it’s far from being perfect when it comes to combining the genetic material of the parents, sometimes leading to incurable genetic diseases. However, genetically engineered children could literally be born perfect in a couple of years in the UK, by replacing defective DNA strands of the embryo with that from another woman, for example, generating children with three parents, two mothers and a fa ... [read more >>] | | 05 June 2008, 06:35GMT | (c) 2008 Softpedia |
| Ancient Fish Moms Gave Birth |  | Scientists have recently found the oldest known fossil that indicates that reproduction through birth was encountered in vertebrate animals as early as 380 million years ago. The fossil belongs to an armored fish female that was about to give birth, but it perished and got fossilized along with the embryo inside it. The previous oldest evidence of the presence of reproduction through birth was found in a fossil dated some 180 million years ... [read more >>] | | 29 May 2008, 07:23GMT | (c) 2008 Softpedia |
| The Ideal Wife: 4 to 6 Years Younger |  | Hugh Hefner or Michael Douglas are just faithful followers of an evolutionary pathway. A new statistical research published in "Biology Letters" reveals that monogamous men indeed have more children if their wives are younger than them, more exactly, by 4 to 6 years.
The research team used the data from a Swedish research, applied a simple equation to the age difference of the parents and the number of offspring, and ... [read more >>] | | 19 March 2008, 14:06GMT | (c) 2008 Softpedia |
| 8 Amazing Facts about Kangaroos |  | 1.Scientists believe that kangaroos' and wallabies' ancestors could have looked like a Wynyardia, a 21 million years old marsupial found in Tasmania.
The largest living kangaroo, the red kangaroo (Macropus rufus) is also the largest living marsupial. Males are up to 1.8m (6 ft) tall and weigh up to 84 kg (187lbs). Kangaroos grow duirng all their life, which can be up to 20 years. Giant short faced kangaroos (Procoptodon), ext ... [read more >>] | | 21 November 2007, 10:06GMT | (c) 2008 Softpedia |
| Female Sharks Can Reproduce without Male Contribution |  | Sharks have many issues of their own in the reproductive domain, from double penis in case of males to intrauterine cannibalism.
Now, another odd trait adds to their reproductive peculiarities: female sharks can give birth without fertilization.
The new mix Northern Ireland-U.S. research investigated the DNA of a hammerhead shark born in 2001 in the Henry Doorly Zoo (Omaha, Nebraska).
The tank in which the shark was born contai ... [read more >>] | | 23 May 2007, 12:56GMT | (c) 2008 Softpedia |
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