... on this earth has been closely involved with his mammalian cousins. Even in highly industrialized nations, mammals provide food, drink, clothing, transportation, and power. It’s interesting, ... than a bird. With this new power, man has a responsibility to his cousins, becauses he is interdependent, even with the mammals for which he cares little.21. What is the main idea of this passage?a. ... Domesticated some animalsb. Put a man on the moon c. Extinguished many mammalian enemiesSECTIONIIIMatthew and Polly Winthrop took their two children (26) …… A fly-drive holiday.Polly’s talking...