Sharing a seashell with someone who has never been to the ocean does not make sense. Listening to the seashell will not bring the memory of the ocean to the person.
The phrase "long in the tooth" refers to horses. Horses continue to grow their teeth throughout their life. The longer their teeth, the older the horses are.
Female extras wear bonnets that hide their faces.
Jane Seymore's British accent is heard when Dr. Quinn is dismissing Sully in the opening scene.
Jake's mother abandoned him when he was seven years old.