[cnity]

It's shorthand for "primates with a genetic mutation that resulted in opposable thumbs were more dextrous. Those primates proliferated due to natural selection". I guarantee that even evolutionary scientists do not talk like that over dinner and regularly reach for such shorthands.

[WastingMyTime89]

Don’t worry I know biologists do it. The field is plagued by a general lack of rigour and a strong bias towards finality.