[QUOTE=JohnBlake]
Actually the article you quoted
http://www.geek.com/news/geek-answer…-cant-1593883/
said: “A vulture, for instance, eats almost exclusively rotting or semi-rotting food, and as a result has a stomach tuned to sterilizing such hazardous materials. Few parasites can survive the acid bath of a scavenger’s stomach, and the same is true to a lesser extent about most carnivores”
[/QUOTE]
Vultures (and hyenas, and lycaons, and marabouts etc…) are specifically carrion-eaters. They never hunt or kill, but thrive on eating animals that other carnivores have killed before (and not fully eaten) or that have died of natural causes, which in the wilds typically means disease. In order to fill that specific niche, they have evolved in a specific direction, i.e. by having a digestive system and immune systems that can process rotting meat, or those bits of meat that predators don’t find palatable.
Predatory obligate carnivores have less robust systems, because the meat they’ll eat will have relatively fewer parasites and toxins. But they still fall prey to some parasites, like flukes and tapeworms, that an otherwise healthy herbivore can carry.
Omnivores have even less robust systems (in that specific direction), because that also allows them to process plants. It’s a matter of relative specialization. Both evolutionary strategies (super specialization vs. jack-of-all-foods) have their advantages and drawbacks.
Yesteryear Inuit people lived primarily on whale, fish, caribou, seal and birds - because as it happens there’s precious little in the way of fleshy fruit in the subarctic. They gathered a little (seaweed, some berries and tubers, one or two specific grasses), but 75%+ of their diet is/was animal fat. They weren’t super healthy, but they thrived just fine.
The reason humans have spread all over the world, from the tropics to the subarctic, is that we can make do with just about any diet, climate or terrain. We adapt and overcome.
First of all no it doesn’t, second of all so what if it did ?
Cows, sure. Well, the killing part at least - the eating part is fine if you don’t mind getting dirty.
Be easy to kill a dog, though, f’r’instance. And dogs are eaten in large swathes of the world. As are rodents, birds and poultry, sheep and goats, insects of all shapes and sizes, many many many species of fish, etc… All of which you can catch, kill and eat without any tools, if you really have to.
It’s just easier and more efficient with than without.
Yeah, you seem to be :). Well, allow me to elucidate then : no it doesn’t. Plenty of ethnic groups don’t wear shoes, they’re doing fine. Walker monkeys (like gorillas) seem to be doing a’ight, too.