Increasing support for the handflapping explanation

When working up the details of the antiinnatia theory, it very soon became apparent that some features of autism could not be credibly explained as due to loss of innatons. This led me to think of the idea of prehuman innnatons being suppressed by later changes, and indeed I thereafter learnt that this concept was already well-established and called atavisms. I explained the handflapping and posturing as a re-emergence of the sort of behaviour regularly seen in wild rats, squirrels and birds in the wild. Fuller details are in the 1993 paper.

Nowadays with the internet it is vastly easier to research things than it was back in the 1980s and 90s. I have now learnt that we did indeed have a rat-like prehuman ancestor, for 163 million years! As described in this video of your granny (which be warned is rather 'exciting' by the way):
http://www.youtube.com/watch?v=y0iSf4yISDA
same as at:
http://animal.discovery.com/videos/animal-armageddon-purgatorius.html