The sociobiological argument against heterogeneous grouping is that siblings share 25% common genes, and therefore have a biological stake in each other's success. This is not the case within a heterogenous peer group, where others would be viewed as a competitive threat to their survival.
Excellent!
Cain and Abel
Independent George to the rescue
Oh shoot. I spelled 'heterogeneous' and 'would' wrong, and there's an extra 'the' in the second sentence.
ReplyDelete*sigh*
Ugh - superfluous use of 'siblings' in the first sentence, too. Why don't I ever notice this stuff before I post?
ReplyDeletebetter question: why didn't I notice it??
ReplyDeleteOK, fixed.
ReplyDeleteI think.
Huzzah for copy editors!
ReplyDelete