This is one of four cartoons I submitted for the "Science of Nature" (working title) exhibition which is part of the 2009 Shrewsbury International Cartoon Festival. The festival takes place from April 23-26, though the exhibitions will open before that.
As 2009 is the bicentenary of the birth of Charles Darwin, and he was born in Shrewsbury, the festival has a Darwin-related theme. The organisers suggested that "Science of Nature" be interpreted widely though, presumably so they weren't inundated with too many "Ascent of Man" gags.
This is a cartoon that I was touting around some months ago. It has got a great reaction from everyone I've shown it to, but the magazine editors have not bitten. I suppose it is a bit of a weird one, it doesn't look like your usual magazine gag cartoon. Maybe they don't want people to turn the page and suddenly think they're reading a textbook on sexual reproduction.
Royston's portfolio website