Chapters 9 and 10 Summary

Because she has been spending more time on science and less on piano practice, Callie must spend a couple of hours each day making up the time she has missed. When she is finally able to get back to her grandfather, she asks him what she should feed Petey, but he tells her to figure it out for herself and she does. Callie continues to write questions in her notebook, including whether caterpillars have a gender. This causes her to note that some species can choose their gender and if humans had that ability, she would choose to be a boy.

Callie quickly grows tired of cleaning Petey's jar and comments that he is not a very entertaining pet. Her grandfather tells her that he is not a pet, but a creature in the natural order of things. Eventually Petey spins...