Rupert the rhino is a bit put off by Levi the tickbird's enthusiastic attachment to him. Harrison mines the symbiotic relationship between real rhinos and tickbirds in her humorous story about anthropomorphic animals at school. Rupert is proper, socially awkward, and self-conscious, while silly Levi, the new kid at school, brims with exuberance and confidence. He tags along with (often literally on) an increasingly mortified Rupert, and the natural world informs the story when Rupert is embarrassed by Levi's loud enjoyment of ticks he plucks from his body in the cafeteria. "Yummy! Tastes like chicken!" Levi jokes in front of an offended hen and a mortified Rupert, who eventually decides "Levi has got to go." He tries various means of ridding himself of Levi, whose ever generous and loyal responses to various passive-aggressive moves stymie the rhino. Finally, Rupert directly tells Levi to back off, saying "I find your boisterousness a tad loathsome," and "Your uncouthness is slightly problematic." Predictably, but nevertheless satisfyingly so, Rupert ends up missing Levi when the bird, hurt and confused, grants the rhino the space he wants. Throughout, the text's humor is matched by Harrison's lively illustrations, which excel in visual characterization and provide funny asides to extend the story. The clothed animals are a stitch, both entirely animal and completely human.This friendship story sticks out. (Picture book. 3-7)

Rupert is a solitary rhinoceros with cerebral tastes: -I like reading dictionaries, listening to classical overtures, and eating cucumber sandwiches with no crust.- Then Levi, a rambunctious tickbird, takes up residence on Rupert-s nose-a textbook symbiotic relationship. Levi is loud, loves to burp, and makes gross jokes about how Rupert-s ticks taste like chicken. Rupert finally shakes Levi loose, but soon realizes how much he misses his companionship and tick-eating abilities (without him, Rupert is pretty itchy). Harrison (My Friend Maggie) uses her signature visual elegance to provide an effective counterpart to her smartly observed stories of kid life. Rupert-s embarrassment and misery are visceral, and his preferred vest-and-tie combos speak volumes about his buttoned-up personality, just as Levi-s tank tops and shorts do. If this story is less satisfying than its predecessors, it-s because Rupert seems more willing to adapt to Levi than the other way around; the common ground the friends find is essentially on Levi-s terms. If this is symbiosis, it-s a lopsided version. Ages 4-8. Agent: Abigail Samoun, Red Fox Literary. (Apr.)