News tagged with human reproduction

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Environmental hormones – tiny amounts, big effects

Empty nets and few species – environmental hormones are believed responsible for the diminishing numbers of fish. How damaging are these substances really, though? Studies that depict a complete picture ...

Apr 02, 2014
5 / 5 (1) 0

New book explores evolution of human reproduction

Human beings would probably be known as pilosals rather than mammals if Carl Linnaeus had not been a proponent of breast-feeding. For social and political reasons, the famed taxonomist labeled the class of ...

Aug 20, 2013
4 / 5 (4) 0

Chlamydia promotes gene mutations

Chlamydia trachomatis is a human pathogen that is the leading cause of bacterial sexually transmitted disease worldwide with more than 90 million new cases of genital infections occurring each year. About ...

Jun 20, 2013
5 / 5 (5) 1 | with audio podcast

The fight against genome parasites

In the gonads of animals, genome parasites such as transposons pose a serious threat to evolutionary fitness. With their ability to bounce around in the genome, they often cause dangerous mutations. To protect ...

Jun 04, 2013
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Reproductive tract secretions elicit ovulation

Eggs take a long time to produce in the ovary, and thus are one of a body's precious resources. It has been theorized that the body has mechanisms to help the ovary ensure that ovulated eggs enter the reproductive tract at ...

Apr 17, 2013
not rated yet 0 | with audio podcast

Clues to chromosome crossovers

Neil Hunter's laboratory in the UC Davis College of Biological Sciences has placed another piece in the puzzle of how sexual reproduction shuffles genes while making sure sperm and eggs get the right number ...

Feb 13, 2013
4 / 5 (4) 2 | with audio podcast

Networking ability a family trait in monkeys

Two years of painstaking observation on the social interactions of a troop of free-ranging monkeys and an analysis of their family trees has found signs of natural selection affecting the behavior of the descendants.

Jan 09, 2013
2 / 5 (1) 0 | with audio podcast

Songbird sings in 3D

The question 'How do songbirds sing?' is addressed in a study published in BioMed Central's open access journal BMC Biology. High-field magnetic resonance imaging and micro-computed tomography have been u ...

Jan 07, 2013
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