The three-eyed lizard tuatara - the inhabitant of the desert islands of New Zealand - do not bother with device holes. She prefers a cozy nest of sea petrel.

Somehow lizard bird "negotiate" about communal living. According to a strictly defined "routine" they use nest in two shifts.

Puffin returns home for the night - just at a time when the lizard to hunt. But it happens that the bird bored hangers, and a lizard being driven away. It sets out no arguments, tuatra obediently moves to a new apartment - another petrels. This flexible "character" is produced from the hanger at once. After tuatry lizards live, by definition, scientists, five hundred years!