On the one hand he produced stylized athletes and animals cast in bronze.
Some work with food producing plants and animals to see if their yield can be increased through genetic engineering.
"Ethically there are issues about mass producing animals in this way."
He died shortly after abandoning the research because the government was using it to produce animals for military uses.
Both groups deny that they contribute to low quality or produce unwanted animals.
Milk producing animals have been domesticated for thousands of years.
The techniques for producing transgenic animals are less than a decade old and still evolving.
And he said the cloning process could produce unhealthy animals.
Breeding programs are used to produce animals more suited to the confined conditions and able to provide a consistent food product.
Are people who specialize in producing female animals rather than male animals going to be left out once again?