Whales, Dolphins and Porpoises

This Gem explores and explains the world of whales and dolphins. Over 50 species of whale, dolphin and porpoise are illustrated with the author's own photographs. Aspects covered include: evolution; identification; biology; zoological categorization; feeding habits; and predators. The book answers commonly-asked questions, such as "how intelligent are dolphins?" and "should whales be kept in captivity?", and discusses the sensitive subject of whale conservation. --This text refers to an out of print or unavailable edition of this title.

马克·卡沃尔廷，动物学家、作家、摄影家。1986起作为自由撰稿人，为世界自然野生物基金组织、联合国环境规划署、世界环境保护联盟工作。独自或合作著有30多部相关著作，制作了一系列相关的广播和电视节目。他是英国鲸豚保护协会等多个保护组织的顾问，并组织过多次世界各地的双鲸活动。