Children! What do you know about termites, those hard-working creatures resembling ants? Do you know that butterflies with their beautiful wings start out as tiny caterpillars and finally emerge from cocoons? Do you know how woodpeckers hide tiny acorns in holes in oak trees, how it is that glow-worms are not burned by the light they give off, how frogs camouflage themselves to hide from their enemies, or how it is that seals do not freeze in the icy oceans..?