For some reason the tune to this is "I'm getting married in the morning"

For the article titled

Cross Species Transfer of Genes Has Driven Evolution

click this link

http://www.newswise.com/articles/view/697075/?sc=swhn

although I cannot resist excerpting
......

“Jumping genes, properly called retrotransposons, copy and paste themselves around genomes, and in genomes of other species. How they do this is not yet known although insects like ticks or mosquitoes or possibly viruses may be involved – it’s still a big puzzle,” says project leader Professor David Adelson, Director of the University of Adelaide’s Bioinformatics Hub. 

“This process is called horizontal transfer, differing from the normal parent-offspring transfer, and it’s had an enormous impact on mammalian evolution.”

....

Ding dong the bells are going to ring