Chapter 5 Jaquan Ellis

         In this chapter, two physiologists took 24 students and had them identify cards as a experiment. Some of the cards were changed leading the students to misread the cards and change their whole perspective when the physiologists showed them the cards at a slower pace. They had quickly began to realize their mistakes. A man by the name of Thomas Kuhn presented the ideas of how humans have been forced to adapt to their changing environment which connects to the theme of human survival depends on developing practices because humans have been developing their intelligence to provide for themselves and making new discoveries that can benefit mankind itself. Kolbert travels to a cliff in Don Lin and meets a man named Jan. Jan shows her a bedrock that dates back to 445 million  years ago where the sea life grew rapidly and suddenly went extinct. The Graptolites were examples of how their evolution led to their downfalls due to them not being able to adapt to lower temperatures. This connects back to the card experiment. The students had to constantly adapt to the change that was going on while the Graptolites couldn’t handle so many changes at once. This shows how the Earth itself has many unpredictable circumstances that we have to get accustomed to.