This was an easy chapter to read. He structured everything so simplistically that it made reading this chapter a bit more easy. It was interesting to learn about the path our smelling sense took throughout the years.
"We humans are part of a lineage that has traded smell for sight"(147). It is profoundly captivating to learn how our bodies decided to turn off the function of a few olfactory genes due to our evolved sense of sight. In addition, it's nice to know that we have a few genes in our bodies that are completely useless to us. On another note, primates also have a keener sense of sight, rather than smell. This also helps us create another similarity with primates, which further concludes that humans do have some similarities with less evolved animals. This was probably the most interesting topic that Shubin discussed in this chapter.
However, I would still like to know as to why dolphins and whales have completely lost their sense of smell.. Does this mean that they have a superior sense of sight? All in all, this was a fairly easy and interesting chapter.
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