Research 2

Research 2: 5 Signs Humans Are Still Evolving

Source:
5 Signs Humans Are Still Evolving

http://mentalfloss.com/article/30795/5-signs-humans-are-still-evolving

My Topic:
Humans are still evolving.

What I hope to learn from this source:
I want to find facts that might help me develop my topic, or new sources that will help refine my topic. I’m looking for something interesting and scientific evidences.

Notes:

1.     We can drink milk: We can tolerate lactose due to the evolution. Since humans began to domesticated cows, goats and sheep, we got genetic mutation which can tolerate lactose though we grow up.

2.     We are losing out wisdom teeth: Wisdom teeth lost its original function because of our physical change. Our ancestors used to have bigger jaws as their foods were much tougher than what we eat today. Today we can eat softer foods so our jaws became smaller. That’s why we are losing out wisdom teeth – no room for them.

3.     Shrinkage of Brain: Our brains are shrinking because of big society where we can now rely on others in many parts of our lives. Some say that shrinking of brain really means we are getting dumber. Some say it’s because smaller brain is more efficient.

4.     We are resisting diseases: We are getting stronger to resist diseases like malaria. Also people living in cities are becoming more resistant diseases like tuberculosis and leprosy.  

Final Thoughts:

I will use these four to write my confirmation. I think four is enough. I will not use the information about getting blue eyes because it is little bit abstract. It would be better if there were several statistics. I’m going to look for it.