A male fruit fly (Drosophila melanogaster) Jan Polabinski/iStockphoto hide caption

itoggle caption Jan Polabinski/iStockphoto

Now we know why we'll never see a common fruit fly (Drosophila melanogaster) sitting on a beet. Jan Polabinski/iStockphoto.com hide caption

itoggle caption Jan Polabinski/iStockphoto.com