sentences:  The new study incorporated over a thousand newly discovered bacteria and archaea.The prokaryotes (the two domains of bacteria and archaea) and certain animals such as bdelloid rotifers have the ability to transfer genetic information between unrelated organisms through horizontal gene transfer.Recombination, gene loss, duplication, and gene creation are a few of the processes by which genes can be transferred within and between bacterial and archaeal species, causing variation that is not due to vertical transfer.