vitruvian man by Leonardo da Vinci

Is he a kangaroo or a gorilla? A question for MrWahab's maths group.
https://www.google.co.uk/search?q=vitruvian+man&client=safari&hl=en-gb&source=lnms&tbm=isch&sa=X&ei=5ao9VIPoA5LB7AaLi4DIDA&ved=0CAgQ_AUoAQ&biw=1024&bih=671#facrc=_&imgrc=w6vXwwxcd3NuRM%253A%3B16zH9qSdR0nyjM%3Bhttp%253A%252F%252Fwww.fred-nijhuis.nl%252Fwp-content%252Fuploads%252F2012%252F12%252FLeonardo-da-Vinci-Vitruvian-Man.jpg%3Bhttp%253A%252F%252Fwww.fred-nijhuis.nl%252F2012%252F12%252Fmacan-versus-roda%252Fleonardo-da-vinci-vitruvian-man%252F%3B1024%3B768


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