"Kiss, kiss," say the mommies. "I love you." "Hug, hug," say the daddies. "Love you, too!" It's a workday morning, and animal mommies and daddies are heading off on the train. All day they do their jobs, and in the evening, they ride the train home to their waiting children. There's dinner, books, baths, and lots of cuddling. Carol Roth's reassuring rhymes and Steve Lavis's friendly, funny animal parents show young readers that moms and dads go away - but always come back.