Ch 10: Do you hear that?

I know this is obvious but most of what Shubin says is actually logical and we can connect to it. For example, " the first time you see the inside of the ear is a letdown: the real machinery is hidden deep inside the skull". I thought that his introduction was obvious but amazingly intelligent because he makes you think about the small things in life. Well throughout this chapter i learned a lot of things like: the ear has 3 sections, the middle ear has bones,and that we have gel inside of head in a sac that helps us hear. I would have never thought that we would have gel that swishes in our head. Shubin tells us that over time the middle ear bone evolved over time through different species, but this evolution of the ear bone relates mammals and reptiles. I don't know if i really follow this because yeah theres evidence but how does an ear bone reveal evolution? Well its been explained but its still amazing and mind blowing. Shubin the talks about how the ear bone evolved into a jaw bone in sharks. I wouldn't have thought that one could eat with their ear. This chapter overall was kind of confusing but at the same time it was good. He illustrated how the ear and eye had an ancient connection.