Because natural selection never looks ahead or works from any master plan,conservation of existing genetic structure is the norm, so one can accurately say, “Humans are 98.4 percent chimpanzee.” But this is neither more nor less
true than statements like, “Humans are two-thirds aardvark,” “Humans are half lungfish,” or even, “Humans are thirty-three percent daffodil.”
From Clay Shirky’s column, “After Darwin”
Hey, it is still spring, isn’t it? How about being 33% daffodil?
My wife is pregnant and we have not found out the sex of the baby ahead of time. People ask us if we know whether it will be a boy or a girl. I respond by saying, “I can say with 100% accuracy that it will be either a boy or a girl.”