Another example of living complexity and the authors wonder how it happened. Toxoplasma gondi , a cat infection controls rats for its life cycle!

http://the-scientist.com/2011/08/19/parasite-spurs-rat-sexual-frenzy/

And which came first, liking to "drink your blood" or the protein to find it:

http://the-scientist.com/2011/08/04/how-vampire-bats-find-veins/

And, of course, the zombie stories: wasps used lady bugs for offspring storage:

http://the-scientist.com/2011/10/31/ladybug-zombies/

And finally, how spiders can find you to bite in the dark (Black widow, brown spider, etc.):

http://the-scientist.com/2011/10/28/super-sensitive-spider-sensilla/