The Benefits of Being Promiscuous

Biologists have long wondered why some female animals bother to play the field. With males, spreading one's sperm as far and wide as possible makes sense, as they sire more offspring that way. For the female, however, extra sex takes a toll on her body, potentially reducing her life span. Yet it doesn't expand her chances of spreading her genes around. Researchers have now shown that promiscuity in the fairer sex has its benefits. By mating multiple times, females can compensate for the downsides of inbreeding. And that's why promiscuity may evolve in small populations.


Isto lembrou-me daquele tópico. Artigo completo aqui.

Finger Drawings From a Prehistoric Preschool

Kraken versus ichthyosaur: let battle commence

Researcher suggests odd arrangement of marine fossils was stockpiled by enormous, tentacled beast.

http://www.nature.com/news/2011/111011/full/news.2011.586.html

Internet Freedom Fighters Build a Shadow Web

Governments and corporations have more control over the Internet than ever. Now digital activists want to build an alternative network that can never be blocked, filtered or shut down.

http://www.scientificamerican.com/article.cfm?id=the-shadow-web