There would be a 5% chance that a single chimp would successfully type the word "bananas" in its own lifetime. And the probability of one chimp constructing a random sentence - such as "I chimp, therefore I am" - comes in at one in 10 million billion billion, the research indicates.

“It is not plausible that, even with improved typing speeds or an increase in chimpanzee populations, monkey labour will ever be a viable tool for developing non-trivial written works,” the study says.