Now we have startling new scientific evidence that monkeys can be trained to pick tea! Well not really, but I saw an article in the Daily Mail about monkeys who work as waiters in a restaurant; and although it is not explicitly mentioned, they probably serve tea as one of their duties.
I leave you, the gentle reader, to be the judge of my outrageous extrapolation. Does a monkey serving tea in a restaurant suggest his ancestors or at least cousins in China might have been capable of picking tea? The scientific community awaits our verdict with communal bated breath.