:Just finished skimming a SciAm article on the earliest hominin skull yesterday.  Nary a mention of aquatic apes.   
 :Would the ape get non-aquatic, or would they simply infuse the near aquatic environment with a generous dose of urea?  Followed shortly by an equally involuntary (though for different reasons) donation of hematocrit?   
 :Anyway, it's a tough page to deal with because of the combination of plausible idea, dilute version (both referring to "humans ate fish" theories) and popular appeal.  Having written most of the very lengthy for/against lists, I've been all over the map on this one.  Still not sure what the right answer is.  Meh, maybe we'll get more long-term editors interested, which can only be a good thing.    Wikipedia's rules:simple/complex