early humans

In the first part of chapter one there is much focus on the first migrations of human kind.  The simplest of tools made it so hunting and fishing was possible.  I think it was incredibly smart of early people to learn to make tools and be able to use them to hunt game and fish.  The early people were also smart enough to plan their settlements around the movement of the animals that they used for a food source.  I also like thinking about what the first images people drew represent, however its a little sad that we will never now for sure what the people were trying to document or if it means anything at all.  I kind of think the most intriguing is the theory about how the animals represent a past life of some sort.  I was amazed that just in the time of the first migrations Australia already had some 250 languages!!! As the chapter moves on to talk about the economy and the environment I was thankful that our lives have changed so much over the years.  Back then the life expectancy was a short 35 years.  If that was true now I would most likely already be without many of the important people in my life and I cannot even imagine that.