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After lurking on the list for some time I have finally decided to ask a
Whilst walking past a duck pond on my way to work I noticed that the knees
of ducks appear to be "back to front" i.e. they bend in the opposite way to
Question 1: Have any dinosaurs been dicovered with this type of knee
Question 2: If not when was this type of joint been observed in birds?
I hope none of you out there think this is a frivolous question as I was
quite supprised when I first noticed.