Zoologi: pattedyr

The Physiology of Dolphins is a robust, up-to-date reference. It provides a collection of review chapters from leaders in the field of dolphin ecophysiology, making it essential for instructors, researchers, and graduate students interested in the physiological and anatomical adaptations that make life possible for these charismatic marine mammals. Showcasing recent technological developments, it covers the complete physiology of these marine mammals and includes information on the current threats for dolphins and whales from environmental pressures such as climate change, overfishing, pollution, and our increasing human presence in the ocean. This is an excellent reference providing easy-to-follow details of the latest available research methods and some of the newer technologies that are expanding the field of marine mammal physiology.

The definitive field guide to all the sharks, rays and chimaeras of eastern North AmericaThe waters off the East Coast of North America are home to an amazing variety of sharks, rays and chimaeras. This groundbreaking, comprehensive and easy-to-use field guide covers all 173 species found along the eastern seaboard of the United States and Canada, including Bermuda and the Bahamas, and extending into the Gulf of Mexico to the Yucatan Peninsula. These are all the species that are encountered in the shallow waters of estuaries and coasts and in the open ocean, including rarely seen deepsea species.Lavishly illustrated throughout, this must-have guide includes detailed species accounts describing key identification features, habitat, biology and status. It also features illustrated key guides that enable users to accurately identify species, comparison plates of similar species, dentition plates and illustrations of egg cases, where known. This an essential guide for fisheries management, trade regulation and shark conservation.The first field guide to cover all 173 speciesFeatures hundreds of color illustrations and photosDescribes key features, habitat, biology and statusIncludes depth guides, at-a-glance icons and distribution mapsOffers illustrated key guides, species comparisons and dentition plates

When most people think of Texas, Bigfoot is probably not the first thing that comes to mind. Tales of the Alamo, cowboys, oil tycoons, and legendary football games are more likely to crop up in conversation than what most would consider a mystery best suited for the forests of the Pacific Northwest. Yet Texas is a vast place full of strange anomalies that are often as big as its ten-gallon reputation, and that includes sightings of ape-like creatures fitting the description of Bigfoot. For nearly two hundred years, residents of the Lone Star State have reported dramatic encounters with elusive wildmen and hair-covered beasts that surely rival those from any part of the world. Texas may be known for its western landscapes yet its true geography is incredibly diverse, offering miles upon miles of piney woods, dense thickets, creeks, and even swamps where mysterious creatures may indeed roam and flourish. Is Sasquatch among them? Find out as I offer a thrilling journey across the wilds of the Lone Star State where true tales of the Texas Bigfoot may surprise and even shock you. They say "everything's bigger in Texas," and if so, this may well be the state's biggest and most unexpected mystery of all.