Daniel, a blind man, uses echolocation to perceive the presence of objects, just like Bats. A team runs him through some tests and find that he's able to create a mental image of his surroundings using sound.
Slappy and Skippy get into a comical, yet confusing conversation about who is on stage at the performance. Slappy asks Skippy "Who is on stage?" and Skippy replies "Who is on stage?" Who is the name of the band, but to Slappy, the answer sounds like a question.
Beakman explains how landline phones work by turning sound waves into electricity and back into sound again. He acts like Alexander Graham Bell to explain it, uses an animation clip, and then does a demo with the transducers of the phone to prove it.
Destiny introduces Dory to her neighbor, Bailey, a beluga whale who claims to have lost his ability to find objects using sound waves. Bailey believes that his head is swollen, but Destiny states that his head is naturally that big because of his species.