PakCat catalogue record Prentice hall science explorer By Padilla, Michael J. Bibliographic details ISBN013250832X PublisherPearson Prentice Hall Publication placeBoston Publication year2007 EditionTeacher ed LanguageEnglish Material typeBook Physical description582p. SummaryA biography of the naturalist who at thirty became the world's foremost authority on whales and whose expeditions to Mongolia disclosed the first dinosaur eggs and many other unknown fossils. SubjectsSCIENCE