"Explains why hippos excrete bloodred sweat and details other strange abilities of different types of animals"--Provided by publisher.

"Explains how mice use ultrasonic vocalizations to attract mates and details other strange abilities of different types of animals"--Provided by publisher.

Students will enter the world of scientists as they uncover the secrets behind birds' brains, the most underappreciated of birds senses, the way frigate birds fly non-stop, how mama bears protect their cubs, and what grunts and bellows mean for pigs and alligators. Primary sources, including interviews with scientists; full-color original and stock photos; an engaging and approachable writing style that simplifies complicated scientific principles;...