Answer:
Possible thesis statements:
The main character in “Saved by a Seal” is torn between his admiration and respect for Nab and his desire to prove his own worth by capturing him.
“Saved by a Seal” suggests that one human flaw is the need to overpower and control wildlife in nature.
The main character in “Saved by a Seal” learns about his own limitations as he tries to control an extremely intelligent seal.
In “Saved by a Seal,” the main character learns that an animal can be of such value that he should not consider himself better than it.