Hey Everyone! About a week or so ago, I wrote about the Meaning of Life and also mentioned a set of videos by Richard Dawkins that my friend Rachel had told me about. I watched all 5 videos and thought they were interesting and enlightening so I am sharing them below.
I was on an evolution kick and also found a 3 part program on Nova called Becoming Human, all about the evolution of us. I can’t give you the videos here, but I’m providing the links so you can watch them on PBS’s site. They are very interesting, and were just aired on PBS in November, so they have some new ideas and research.
- Becoming Human Part 1: First Steps: Six million years ago, what set our ancestors on the path from ape to human?
- Becoming Human Part 2: Birth of Humanity: New discoveries reveal how early humans hunted and formed families.
- Becoming Human Part 3: Last Human Standing: Many human species once shared the globe. Why do we alone remain?
Exploring a bit further, I found an interesting article about human evolution called Are We Still Evolving? This is a question that I have been pondering lately. Since we developed agriculture about 10,000 years ago, developed medicines, learned to cook our food, and developed technology, among some factors, more and more babies survive and grow up to reproduce. According to the article, about 98% of all babies born in the U.S., Europe or Japan survive long enough to reproduce and pass on their DNA, so survival doesn’t depend as much on genes.
But in third world countries, natural selection still favors mutations in dealing with deadly diseases. For instance, people with the sickle-cell mutation in the beta hemoglobin gene have a protection against malaria.
One example of more recent evolution in humans is lactose tolerance. This is evidence that we have evolved, even if it’s just in a small but significant way. Read the rest of this entry »









I’m sure GMN will have a response; but I just feel the desire to chime in. Read the rest of this entry »