If We Could Turn Back Time...

     One question that always puzzles individuals is, is time a human-constructed concept? I have always heard from others that people "made" time and we need its structure to lead our lives. But, as it was raised in class, time really was not ours to "invent". So, this means that time existed far before humans did, and was simply not given a label until we gave it one. This leads me to wonder, are there any other animals who have a similar conception of time as humans do? If so, how did it affect how they led their lives if they existed before humans evolved? It also seems strange that humans, as a part of nature, need clocks and the concept of time to function. There are no other animals on the planet who have invented clocks, and it therefore seems strange that we needed to. Most animals do not need to think of time in the same way we do, for they have natural instincts that tell them when to wake up, when to migrate, when to return to a certain place to mate, etc. So why is it that humans do not have as many of these natural instincts? It almost seems that humans have evolved to be lazy. We do not live in the "wilderness" as most animals do, and most people do not have very many instincts like sleeping lightly to wake up if there is danger. Instead, humans sleep in, spend so much time being unproductive, and are extremely dependent on the very technology we have invented. It is just puzzling that if you put any animal in a very isolated place in the wilderness, chances are they would be able to survive if they could live in the climate. If you strand a human out in the middle of no-where though, they often cannot sustain themselves. We have invented so much technology, but it has driven us backward in our ability to live independently of these forces. Often I wish I could travel back in time and live as the first settlers of America did, like the people of Medieval Europe, or even as the Ancient Egyptians. It seems that the time we live in right now has so many problems, and so much negativity. But, would living in a different time really be any healthier for the planet or ourselves? What would be the positive and negative aspects of living in another era?