Reader, here is an incomplete list of things you should not try with elephants: a memory contest, jump rope and castration. See, in addition to having uncanny recall and a firm relationship with ...

A wide-ranging 2008 commentary in Slate by Liam Drew effectively covers the technicolor array of available “explanations” for testicular descent. Published options include escape from abdominal ...

So testicular descent was most probably the ancestral condition. This inference is bolstered by the finding that inactivation of the RXFP2 gene arose independently at least four different times during ...