Animals.

Series premiere. An uninitiated rat gets mating tips from his friend at a subterranean party.

A naive male pigeon prepares himself for motherhood, while another’s pigeonhood is challenged by a New Jersey rival. One caterpillar’s metamorphosis is another’s lament.

Two privileged feline siblings find their perfect day interrupted by a crafty alley cat, who’s in for more than he bargained. Bored with the monotony of his life, a goose sets off on his own, and attempts to bond with a flock of Central Park swans by posing as a black swan.

A papillon is thrust into an unwelcoming dog park. A dog-walking group deals with an unexpected secret. Two dogs dissect their owners’ first date.

A rat invents pants. A moth tries neon light for the first time. Two fish couples have a tense dinner.

Pigeon Phil runs into trouble after he’s reunited with the dad who abandoned him, while pigeon Mike struggles to encourage his son to be a seagull scout. Two turtles come to blows over the love of a mechanical frog, while a skunk learns the unfortunate truth about his date’s past.