Cetaceans (whales, dolphins, and porpoises) have fascinated and bewildered humans throughout history. Their mammalian affinities have been long recognized, but exactly which group of terrestrial mammals they descend from has, until recently, remained in the dark. Recent decades have produced a flurry of new fossil cetaceans, extending their fossil history to over 50 million years ago. Along with new insights from genetics and developmental studies, these discoveries have helped to clarify the place of cetaceans among mammals, and enriched our understanding of their unique adaptations for feeding, locomotion and sensory systems. Their continuously improving fossil record and successive transformation into highly specialized marine mammals have made cetaceans a textbook case of evolution - as iconic in its own way as the origin of birds from dinosaurs. This book aims to summarize our current understanding of cetacean evolution for the serious student and interested amateur using photographs, drawings, charts and illustrations.

The true story of the city of Port Royal in Jamaica. In 1692 an earthquake and tidal wave caused the city to sink beneath the sea. Robert F. Marx was one of the men caught up in the legends of buried treasure and this book describes the fulfillment of his childhood dream: a two-and-a-half year exploration of the historic Jamaican port. The first investigation of the site by a trained marine archaeologist, his expedition discovered thousands of perfectly preserved artifacts of life in the 17th century city: silver and pewter ware; brass, iron and wooden tools; and much more, including two hoards of classic buried treasure: Spanish pieces of eight.

Rookie Readers "RM" have provided entertaining, high-quality introductions to reading for more than a generation. Each title features full-color, often hilarious illustrations and engaging stories that always involve a young child figuring out concepts or solving problems on his or her own. Every new title contains a Word List and a color-coded reading-level key on the back cover.

From aerial survey to zoology, Part I of this two-part encyclopedia covers all aspects of underwater archaeology, treasure hunting and salvaging. For example, entries are included for different types of artifacts, notable treasure hunters, the various salvaging equipment, and techniques in mapping and excavating. Part II covers the shipwrecks themselves, dividing them into 13 geographical categories. Beginning with the northernmost category (Canada) and ending with the southernmost (South America), every known shipwreck - both identified and unidentified - receives an entry in alphabetical order under its appropriate geographical category. Entries are by name, such as Andrea Gail, Titanic, and Queen Ann's Revenge. Unidentified is used when a shipwreck's name remains unknown. Entries give the nationality (e.g., Spanish, British, American), type (schooner, frigate, brig are three), function (examples: slave transportation, piracy, fishing), location and history of the shipwreck.