Grandfather Frog in "Old Mr. Toad Visits Grandfather Frog"

Grandfather Frog and old Mr. Toad are cousins. Of course you know that without being told. Everybody does. But not everybody knows that they were born in the same place. They were. Yes, Sir, they were. They were born in the Smiling Pool. Both had long tails and for a while no legs, and they played and swam together without ever going on shore. In fact, when they were babies, they couldn't live out of the water. And people who saw them didn't know the difference between them and called them by the same names—tadpoles or pollywogs. But when they grew old enough to have legs and get along without tails, they parted company.