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Explore this section to find links to downloadable PDF reports, species ID guides, a table of guidelines and regulations from around the world, a glossary of whale-watching terms, and a fully searchable database of over 300 reports and peer-reviewed articles on whale watching.
Introduction. Whales, dolphins, and porpoises together constitute the Cetacea (English: cetaceans). All modern Cetacea live in water and cannot survive out of the water. In spite of this, cetaceans are mammals.
… Mosaic pattern of change in anatomical, physiological, and behavioral characteristics during the transition from early land-living Artiodactyla to modern fully marine Cetacea. Arrows here show...
whales. For most whales, we do not have basic biological information, such as where they go to birth their calves or where their favorite feeding areas are located. We know that many whales make long migrations from summer feeding ground to winter calving areas, but for most whales, we do not know the routes traveled.
The following diagram highlights some of the external adaptations of whales. Scientists divide whales into two groups based on how they feed. One group, called toothed whales, contains sperm whales, orcas, and other predatory whales which have real teeth and feed primarily on fish and squid.
Whales, dolphins, and porpoises : a natural history and species guide / Annalisa Berta. pages cm Includes bibliographical references and index. ISBN 978-0-226-18319-0 (cloth : alk. paper) — ISBN 978-0-226-18322-0 (ebook) 1. Whales—Anatomy. 2. Dolphins—Anatomy. 3. Porpoises—Anatomy. 4. Whales— Behavior. 5. Dolphins—Behavior. 6 ...
Predators at the top level of the trophic pyramid include animals like sharks and dolphins. However, not all top marine predators live in the sea. The albatross is an important predator at the top of the marine food web in Otago. Humans are also top-level consumers in the marine food web.
