For anyone like me
winnow /wĭn′ō/
intransitive verb
To separate the chaff from (grain) by means of a current of air.
To blow (chaff) off or away.
To examine closely in order to separate the good from the bad; sift.
"The judges winnowed a thousand essays down to six finalists."
Also I like how they say apes open bananas at the stem end, so that means humans, the more intelligent species, opens them wrong. Though when I think about it it probably has more to do with finger dexterity.