huckelberry wrote:Natural predators? Well now perhaps only ourselves
If you tallied up the number of people that died as a result of another person intentionally killing them and put it up against total mortality rate for the 20th century, you'd notice that other people aren't even in the top five causes of death for humans.
huckelberry wrote: and some microscopic predators.
Getting close... But thanks to modern medicine and nutrition, diseases that once culled the herd are not only treatable, in a lot of cases we've managed to eradicate the threat entirely (SmallPox or Polio ring any bells?). Also, because of modern medicine a lot of wounds where once you would have eventually died from infection are no longer life threatening (Peniciline much?).
These days, unless you live in an undeveloped nation, microbes aren't much of a threat.
For example, thanks to modern medicine I'm immune to TB, Anthrax, Small Pox, Polio, and all but the most virualent strians of the Flu. Turns out all those vaccinations I got in the Marines still work very well as I haven't even had so much as a case of the sniffles in over fifteen years now. Although I wouldn't want to test it, I'm willing to bet I couldn't catch the clap in a Thai whore house thanks to all the vaccinations I've had over the years.
huckelberry wrote:In our early years lions tigers bears wolves hyenas etc would have all be serious threats. I think a critical event in our history was when our forebearers started taking the risks of leaving the safty of trees. One person and a lion, the person is prey. Three or four people with spears and the lion is prey. Cooperation and violence founding our race.
It was our ability to use tools combined with binocular vision, social skills, and intelligence that did it. The most important of these was and still is our ability to use tools to adapt to our environment far more rapidly than any natural evolutionary process can keep up with.