A scientific comedy for young audience, that gives some explanations on brain's functions / published by L'Ecole des Loisirs

Why is the apple tree so small ? Why does the yew keep its leaves even in winter ? Why are some beeches purple ? What are the stories of the animals that live in the oak at night ?

In the garden shed of a house in a residential suburb, schoolchildren find a baby. Who is he ? Where does he come from ? What should be done ?

Lilou lives near the sea. Since she was little, she likes to run in the dunes, play to make the seagulls fly away... One day, she finds a wounded bird at the foot of a cliff.