Zoologi: havpattedyr og ferskvandspattedyr

A captivating exploration of how underwater animals tap into sound to survive, and a clarion call for humans to address the ways we invade these critical soundscapes - from an award-winning science writer.For centuries humans ignored sound in the 'silent world' of the ocean, assuming that what we couldn't perceive, didn't exist. But we couldn't have been more wrong. Marine scientists now have the technology to record and study the complex interplay of the myriad sounds in the sea. Finally, we can trace how sounds travel with the currents, bounce from the seafloor and surface, bend with temperature, and even saltiness; how sounds help marine life survive; and how human noise can transform entire marine ecosystems.In Sing Like Fish, award-winning science journalist Amorina Kingdon synthesises historical discoveries with the latest research in a clear and compelling portrait of this sonic undersea world. From plainfin midshipman fish, whose swim-bladder drumming is so loud it keeps houseboat-dwellers awake, to the syntax of whalesong, from the deafening crackle of snapping shrimp, to underwater earthquakes and volcanoes, sound plays a vital role in feeding, mating, parenting, navigating, and warning. Meanwhile, our seas also echo with human-made sound, and we are only just learning how these pervasive noises can mask mating calls, chase animals from their food, and even wound creatures.Intimate and artful, Sing Like Fish tells a uniquely complete story of ocean animals' submerged sounds, envisions a quieter future, and offers a profound new understanding of the world below the surface.

Identify marine mammals on your whale-watching trips and beach outings in California, Oregon, and Washington. Seeing a whale is an experience unlike any other. You wait, you hope, and when a beautiful creature breaks the ocean surface, the moment is as thrilling as it is unforgettable. Whether you're a tourist on vacation or a local resident on a day trip, keep this booklet close at hand. Written by environmental educator and Emmy Award-winning documentary film producer Stan Minasian, it features more than 20 species of whales, dolphins, and porpoises-as well as other marine wildlife. When you spot an animal in the Pacific Ocean, check this guide to identify it and learn more about it!The handy booklet is applicable to the coastal waters of California, Oregon, Washington, Canada, and Alaska. It provides a brief introduction to cetaceans (marine mammals) and outlines what to expect when watching whales from land or while on a cruise. The guide also presents the best land-based locations for whale-watching, organized by state. The pocket-size format is much easier to use than laminated foldouts, and the tear-resistant pages help to make the spiral-bound book durable in the field. As an added bonus, the guide introduces present-day threats to whales and discusses US laws that help to protect whales, including the Marine Mammals Protection Act. The booklet documents specific requirements that whale-watching vessels must adhere to, like how far away they must remain from various whale species, and it even outlines details about a phone hotline and a smartphone app that you can access if you spot a whale in trouble. Book Features:Pocket-size format-easier than laminated foldoutsProfessional illustrations and photographs for quick identificationWhale-watching locations organized by stateEasy-to-use information for even casual observersSuggestions for choosing an eco-friendly whale-watching vesselWhale-watching "do" and "don't" tips from an expert

Kaskelotten er verdens største rovdyr. Den har verdens største tænder (25 cm lange!), verdens største hjerne og et hjerte, der vejer flere hundrede kilo. Der er meget, vi mennesker ikke ved om kaskelothvalen, da den tilbringer det meste af sit liv i havets dyb, men i denne bog kan du læse om, hvad man har opdaget om den hemmelighedsfulde kæmpe. Med fantastiske fakta og smukke, detaljerede illustrationer dykker Lennart Eng langt dybt i historien om kaskelothvalernes hemmelige liv.

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

En betagende bog med flapper og laser-udskæringer, der afdækker havets hemmeligheder, skabt af Hélène Druvert, som også står bag mange lignende børnebøger.Tag en dyb indånding og dyk ned i denne smukke bog i stort format, fyldt med smarte udklip, der lader dig udforske havet, lige fra kysten og lavt vand til de mørkeste dybder. Ud over vandets og bølgernes bevægelser fremhæver bogen også havets beboere, og du kan løfte flapperne for at se skaldyr og krabber, der gemmer sig under sten, eller komme helt tæt på en kæmpeblæksprutte. Her kan du også lære, hvor vigtigt det er at passe på havet, og om hvad du kan gøre for at hjælpe.