The Berenstain Bears' Big Book of Science and Nature
Ages 4–7 · 1984

Written and illustrated by Jan Berenstain and Stan Berenstain
Part of the The Berenstain Bears series
Grumpy morning turns to laughter in the Bear house.
In the Bear house, a grumpy morning sets a sour tone. Can the family find a way to turn frowns into smiles? Discover how a little laughter might just be the key to bringing them back together.
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