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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:13.5pt'>>…to Quetzalcoatlus, a flying creature with a 35 foot wingspread that existed 66 million years ago… John Clark<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:13.5pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:13.5pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:13.5pt'>This one blows my mind. Flight has so many square/cube law relationships, I have never been able to get my head around the idea that anything with triple the wingspan of our modern birds could ever fly, or even glide.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:13.5pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:13.5pt'>If you look at the sketches of Quetzacoatlus, one can easily tell they were drawn by dinosaur people rather than flight people. I don’t see that we have even started to work out the details on how such a beast could safely land, never mind take off.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:13.5pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:13.5pt'>spike<o:p></o:p></span></p><div><div><div><p class=MsoNormal><o:p> </o:p></p></div></div></div></div></body></html>