Follow Your Nose - S2.E33

When PB&J go off for a picnic, they encounter a family of underground-dwelling Moles. Since the family lives down beneath the ground, they can't see too well in bright sunlight - so they wear dark glasses and use long white canes to move around. But despite the differences between the Moles and Otters, they come to realize that they really do have alot in common with each other.