Wealthy humans are likely become cyborgs within 200 years as they gradually merge with technology like computers and smart phones, a historian has claimed. 

Yuval Noah Harari, a professor at the Hebrew University of Jerusalem, said the amalgamation of man and machine will be the 'biggest evolution in biology' since the emergence of life four billion years ago. 

Prof Harari, who has written a landmark book charting the history of humanity, said mankind would evolve to become like gods with the power over death, and be as different from humans of today as we are from chimpanzees. 

He argued that humans as a race were driven by dissatisfaction and that we would not be able to resist the temptation to 'upgrade' ourselves, whether by genetic engineering or technology.