The redneck strike again.

[Little Rik]

Man become man about a million years ago.
Before he was very similar to an primate so your idea that man was man for more than a million of years is just rubbish.

I said "we and our ancestors" which includes the apelike animals which came before humans because they are our ancestors, too.

Well, if you put it in that way how can i argue with you?

Aborigines are those who really started to screwed up Australia before the arrival of white man which finish the job to put the nails on the coffin.

The point of my linking to that article about aborigines was to show that the women catch small game. This means they don't run around hunting with weapons. Our remote ancestors could also have caught small game like that so they wouldn't have needed big teeth and claws etc. They just caught their meat in the same way that chimps and bonobos do today. Humans only moved on to hunting big animals once they'd invented proper weapons.

To catch small game you don't need big canine and claws but you still need a proper digestive system that can cope with saturated fat, cholesterol and toxins.
Now if you consider that these people living in the bush do a lot of physical exercise and breathe fresh and clean air and the animals are wild so free of antibiotics, hormones and all the rest then these people are in part able to get rid of some of the crap but you got to look at today reality which is totally different.
But again you also got to look at the mental non-progress of these people which shouldn't be confused with survival skills.

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And these days you cut the trees in order to plant soya or other crops for animals feed.

Soya is used for vegetarian products, including soy milk.

Let us say that only 6% of soia is used for human consumption, all the rest is used to feed animals.
http://www.soyatech.com/soy_facts.htm

As for nature never making mistakes, what about the dinosaur extinction which was most likely caused by an asteroid impact?

You really think that an asteroid impact in one place affected the whole planet?
Not even the most expert scientists have been able to ascertain this so far.
Beside i don't understand what the mother nature has got to do with this all?
It is well known that everything that one day born will later on die.
One cycle end while an other is born so nothing really new in this universe.