Does "he suggests rather impudently that Dr McCarthy do the experimental work himself"mean "he suggests very rudely that Dr McCarthy in his experiment had intercourse with pig/chimp..."?
Context:
He adds: 'Hybridizing a pig and a chimp is like taking half the dancers from a performance of Swan Lake and the other half from a performance of Giselle and throwing them together on stage to assemble something. It’s going to be a catastrophe.'
Finally,
he suggests rather impudently that Dr McCarthy do the experimental work himself and try mating with a pig to see how far he gets.
But Dr McCarthy believes that, in the case of humans and other creatures, his hybrid modification to evolutionary theory can account for a range of phenomena that Darwinian evolution alone has difficulty explaining.
More:
http://www.dailymail.co.uk/sciencetech/article-2515969/Humans-evolved-female-chimpanzee-mated-pig-Extraordinary-claim-American-geneticist.html