Humans may simply be unable to survive long term on other planets without a bit of genetic tinkering.
As technology improves, we could soon face the prospect of the theft and analysis of our DNA.
It may soon be possible to tinker with our children's genes - but should we really be playing God?
Scientists may be able to alter our genes to make the human colonization of other planets more viable.
Genetics researchers have created a new species of lizard by mating two other distinct species.