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Dolphins and Whales News -- ScienceDaily

Ocean giant gets a health check: Combination blood, tissue test reveals whale shark diets - Whale sharks, the world's largest fish, likely endure periods of starvation and may eat more plants than previously thought, according to the first results of a new health check. Ocean scientists now have a powerful, simple tool to discover the diets, migrations, and conservation needs of this endangered species.
Far-ranging fin whales find year-round residence in Gulf of California - Researchers from Mexico and the United States have concluded that a population of fin whales in the rich Gulf of California ecosystem may live there year-round -- an unusual circumstance for a whale species known to migrate across ocean basins.
15-meter-long ancient whale Basilosaurus isis was top marine predator - The stomach contents of ancient whale Basilosaurus isis suggest it was an apex predator, according to a new study.
Giant singers from neighboring oceans share song parts over time - Singing humpback whales from different ocean basins seem to be picking up musical ideas from afar, and incorporating these new phrases and themes into the latest song, according to a newly published study that's helping scientists better understand how whales learn and change their musical compositions.
Groups of pilot whales have their own dialects - A new study has found that short-finned pilot whales living off the coast of Hawai'i have their own sorts of vocal dialects, a discovery that may help researchers understand the whales' complex social structure.