Scientists at the Inner Mongolia Agricultural University of Life Sciences, Biological Manufacturing Key Laboratory in north China say that they have successfully bred the world's first genetically modified calf able to produce low-lactose milk within two years.

Called "selective breeding," Australian researchers are looking into ways of using genetic modification on cattle and sheep so that they produce less methane as part of a new sustainability initiative called target100.

A Chinese team of scientists is working on engineering cows so they will be able to produce human breast-like milk for sale in China in as little as two years.