Roku and Hex, the world's first chimeric monkeys

Roku and Hex, the world's first chimeric monkeys, contain a mixture of cells representing at least 6 different genomes.
Chimero, a third chimeric monkey produced by scientists. The researchers combined cells from 6 different rhesus monkeys, male and female, into an embryo to implant into a surrogate mother monkey. The results are Hex, Roku and Chimero, now all about six months old and healthy.