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Fertility

Fertility

(Science: biology) The capacity to conceive or induce conception and thus generate offspring. The state of being fertile; capable of producing offspring.The ratio of live births in an area to the population of that area; expressed per 1000 population per year.


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Menopause

... but do produce them over the course of their reproductive life. Human women are exceptionally rare in the mammalian world in that they can undergo fertility cessation, at so very young an age (37), when women are living to 92 in places like Japan. There are lots of theories as to when and why menopause ...

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by Annij
Sun Nov 03, 2013 5:23 am
 
Forum: Human Biology
Topic: Menopause
Replies: 5
Views: 3651

Menopause

... but do produce them over the course of their reproductive life. Human women are exceptionally rare in the mammalian world in that they can undergo fertility cessation, at so very young an age (37), when women are living to 92 in places like Japan. There are lots of theories as to when and why menopause ...

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by Annij
Sun Nov 03, 2013 5:22 am
 
Forum: Human Biology
Topic: Menopause
Replies: 5
Views: 3651

why is the reproductive system immune to entropy?

... That being said, even the reproductive system ages; I think that is one reason why the children of older women have more birth defects and why the fertility of men decreases over time (although most men stay fertile for most of their lives). However, there is a mechanism to prevent 'aging' in certain ...

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by biohazard
Wed Jun 12, 2013 9:44 am
 
Forum: General Discussion
Topic: why is the reproductive system immune to entropy?
Replies: 3
Views: 1802

Hermaphrodite Reproduction

... minimal research we came to the conclusion that it would be exceedingly rare- the wiki on true hermaphroditism even states that "although fertility is possible in true hermaphrodites (as of 2008 there have been at least 11 reported cases of fertility in true hermaphrodite humans in scientific ...

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by cbridges
Sun Dec 16, 2012 6:24 pm
 
Forum: Human Biology
Topic: Hermaphrodite Reproduction
Replies: 0
Views: 2399

Re: Can you think of an evolutionary reason for this?

... on what the evolutionary advantage of this situation would be??? for the first one: the presence of a biological father would prevent early fertility simply because it might not actually lead to greater fitness (complications of young pregnancies). On the other hand that pressure has to ...

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by Cat
Fri Sep 28, 2012 3:12 pm
 
Forum: Evolution
Topic: Can you think of an evolutionary reason for this?
Replies: 8
Views: 5655
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