Now this Stickleback was a year old and knew much more than he did the summer before. When the alder tassels and pussy willows hung over the edge of the pond in the spring-time, he began to think seriously of life. He was no longer really young, and the days were past in which he was contented to just swim and eat and sleep. It was time he should build a home and raise a family if he wanted to ever be a grandfather. He had a few relatives who were great-grandfathers, and one who was a great-great-grandfather. That does not often happen, because to be a Stickleback Great-great-grandfather, one must be four years old, and few Sticklebacks live to that age.