The Birds, the Bees, and the Berenstain BearsBook - 2000
What happens when Sister Bear noticies that Mama's lap is shrinking? No, it's not that Mama is eating too much salmon and honey comb. Mama is going to have a baby! With a little help from Mama and Dr. Gert, Sister learns about the birds and the bees...and sonograms, too!
Characteristics:  pages :,colour illustrations ;,21 cm.