<font color="yellow">...insofaras large animals, a possibility, too, is that the earth's gravity was a bit less than it is today. allowing for larger animals to proliferate. under today's gravity, creatures of such sizes as the largest dinosaurs may not have been able to walk, stand, pump blood, anything.</font><br /><br />An idea presented in the article "Impossible Dinosaurs" at Thunderbolts.info.<br /><br />Which also contains this gem: <i>Holden calculates that in order for the largest dinosaurs to function, gravity must have been at least 1/3 (and possibly as low as 1/4) what it is today. He also postulates that gravity increased suddenly at the close of the age of dinosaurs but not to the present value. Lower-than-present gravity continued into the following ages of giant mammals and possibly even to the days when early humans were building giant monuments like Stonehenge.</i><br /> <div class="Discussion_UserSignature"> <strong><font color="#3366ff">Made weak by time and fate, but strong in will to strive, to seek, to find and not to yeild.</font> - <font color="#3366ff"><em>Tennyson</em></font></strong> </div>