Back in March 2014 science Writer and blogger Ed Yong gave a TED talk on the subject of parasites and the fascinating ways in which they can sometimes “subvert and override the wills of their hosts” (a full video of the talk posted here on DG). In his talk Yong spoke about how rodents infected with the brain parasite toxoplasma gondii effectively become “cat-seeking missiles”; seeking out felines and getting themselves eaten just so that toxo can then develop and reproduce inside the cat.