artificial selection

20 LETTERS · STARTS WITH A

artificial selection is a valid 20-letter word worth 26 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

A1R1T1I1F4I1C3I1A1L1S1E1L1E1C3T1I1O1N1

1 + 1 + 1 + 1 + 4 + 1 + 3 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 =26 PTS

DOUBLE WORD → 52TRIPLE WORD → 78

MEANING

What does artificial selection mean?