Big Panda, Little Panda

In this homely-wise story a young panda confronts the perennial plight of siblings who find themselves unexpectedly ``big'' when another little one comes along. As Little Panda assumes a new name--Big Panda--the reader will sympathize with his ambivalence about the comfort of staying small and the responsibilities of growing up. Stimson spotlights subtle changes that require big adjustments--a slight wound does not rouse the same motherly attention, a story is rushed (``Stop!'' cried Big Panda. ``You're leaving out the best part''), and overtired Mom yawns too much. When Big Panda squeezes himself back into the baby's bed, a simple, realistic remedy proves best: `` `Come on, we're going out,' said Mom. `We all need a change.' '' Balance is reestablished as Big Panda pioneers his new role in the family. Although the generally warm and fuzzy watercolor illustrations resist excessive cuteness and make occasional bows to Chinese culture, there is little here that is unusual. But, as a package, the book will console and prod the newly ``elder.'' Ages 4-7. (Feb.)