Female ducks can thank evolution for avoiding becoming impregnated by undesirable but aggressive males endowed with large corkscrew-shaped penises: vaginas with clockwise spirals that thwart oppositely spiraled males.  That's right, males are literally screwed.

The research on this evolutionary 'battle of the sexes'  at the genitalia level were described in the December 23 issue of the journal Proceedings of the Royal Society B.
Stars in globular clusters tend to be 12-13 billion years old but a small fraction appear to be significantly younger than the average population.   Left behind by the stars that followed the normal path of stellar evolution and became red giants, those younger ones have been dubbed blue stragglers.

Oddly, blue stragglers appear to regress from 'old age' back to a hotter and brighter 'youth', gaining a new lease on life in the process - a cosmic facelift.
As 2009 closes, we can look at the state of sci-fi gaming.  You might wonder why a science site cares, and the answer is that science fiction is one of the best gateways to science careers.  For one generation of astronomers, pretty much, either you'd watched Star [Trek/Wars] or you got to peek through a telescope at the real thing.  Or both.