What is the secret of the sleepless whales?
Join the scientists and their animal partners in a amazing adventure that will reveal the secrets of these amazing aquatic mammals! Find out what killer whale Kasatka and her calf Nakai "do not do" to survive the first weeks after the baby is born. Or how Popolo the dolphin is able to dive for long periods of time. And how Henry the harbor seal has shown scientists why murky, dark waters are nor a problem for him when it is time to find a meal. Enslow Publishers, 2008