I just want to thank Amand Ridley for all her help on this manuscript, from the ideas to the data protocol and the endless stream of drafts.
On a different note, a very interesting paper was published in PNAS investigating female preference for male penis size:
It is an interesting paper, investigating a selective pressure that has had various levels of support from past studies. It is interesting to think of how this preference is manifest in the modern world.
Another link to Nature news: