Comments by "Helmuth Schultes" (@helmuthschultes9243) on "American Reacts to Why is Australia's big herbivore so strange?" video.

  1. Kangaroo motion seems unique, but... No doubt you have seen the modern atheletes with curved springy blades attached to their feet and thereby achievong higher speefs with lower energy required running. Inspired by the efficiency observed on kangaroos and its relatives. The motion recovers considerable energy in each step, as the springy nature stores impact energy to release into the next stride, at the same time absorbing considerable of the shock in each landing step minimising damage to body for harshness in each step. Precisely the body straons and long term damage suffered by many, in joints and spine from the effect of jogging and running on hard surfaces. At same time also compemsating for uneven surfaces quite an amount. To the kangaroo provides far longer distance per step while running than purely provided by leg length. There are other animals uding somilar benefits springbock, antelopes, ostrich, emu, even rabbits and hares to quite an extent, all aiding survival. Also unique is that Australia has no natural HOOFED animals. Far less damaging to fragile ecology, hoofs tear up the ground considerably, and becomes very evident in Australian agriculture of sheep and cattle, and damage in mountains by brumby (feral) horses and those in farming.
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  2. Much of the extinct mega fauna of Australia would have suffered from hunting by aborigines , which seem to have in two waves populated this land mass from 80 000 and 40,000 years ago, respectively, with the first group vanishing after being driven from existence by the second wave, the first being also slightly larger and primitive mankind. Refer MUNGO MAN as a topic.
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