For instance, one component of the organism originates from a human, while another part comes from an animal.
This can be accomplished by directly introducing stem cells—cells that have the capacity to develop into any kind of tissue—into the organism or by introducing genes from one species into the genome of another.
Technically, even a person who has had a bone marrow transplant is a chimaera because some of their body components are from a different creature.
The ‘geep’ was created in 1989 by researchers at the University of California, Davis, who fused the genes of sheep and goats to create the first real artificial chimaera.
But according to Professor Saha, scientists could be able to go even farther in the future.