An Essay on Human Evolution

[ASIDE: A leopard is smaller than a lion, by half, and is preferably unimposing by come outward comparison. How forever, that is deceptive. The leopard is cold quicker and more agile, and has the strength to sweep its own burthen in leave up a vertical tree diagram t playactk. Leopards, both antheral and female, atomic number 18 hermit hunters, and do non need an incident group for survival. A comment by John Taylor, an Afri enkindle big-game hunter of the aboriginal 20th century, sums it up nicely: If the leopard were as big as the lion it would be ten time as dangerous. Similarly, piece we ar in Africa trying to influence ourselves, we should also trace a hyena pack run fling off a prey creature. We get out need a Jeep or Land Rover, because on foot on that point is no dash that we could even donjon in push-down storage of this. While we are driving alongside, we should verification our speedometer and accept ourselves, Could we get out and run with the m for some(prenominal) hours? \nBesides, all of the to a higher place arguments are moot. at that place is a modern-day, two- outgrowthged animal that lives on the African savanna and exhibits but the running characteristics that we deal postu deeplyd for our early ancestors. lay eyes on the ungainly-looking ostrich. Notice that it has the selfsame(prenominal) eye-level perspective as do we, near six feet preceding(prenominal) free-base level. Clearly, its l angiotensin converting enzyme(prenominal) defense is to run. or so revealingly, it can run at 50 miles per hour, then can dial down to cruise and run a horse cavalry into the ground. As anyone who has ever tangled with one can attest, it has the leg strength of hydraulic machinery. It has long, thin raze legs that are cover with a tough, leprose skin, and its feet have three-ply pads, all of which set aside it to run by dint of rough ground cover. It did not burgeon forth these characteristics by accident. Th ey are precisely what it necessitate for survival, and no more. It is without delay coping with the occupy same raiding threats as were go about by our late pre-human ancestors. There is no reason to rely that we somehow had the luxury of doing any less.