baleen: - a material in the mouth of certain whales that filters food from ocean water., Plankton: - tiny plants and animals that live on or near the ocean´s Surface., Sonar: - a system that sends high-frequency sound waves through the wáter and registers the vibrations bounced back by an object., Flukes: - the two halves of a whale´s tail., Gestation: - the period when a baby develops inside its mother´s body before being born; the devolpment that occurs during this time., Buoyancy: - the ability or tendency to float., Pectoral: - of, realting to, or located in or on the chest., Keratin: - a strong material produces by the bodies of some animals that makes up hair, hoves, claws, feathers, and fingernails., Crustaceans: - members of a group of mostly aquatic invertebrates, such as crabs, lobsters, and shrimp., Frequencies: - the rates of vibration of a sound wave., Cetaceans: - ocean mammals, including whales, dolphins, and porpoises., Krill: - tiny crustaceans that live in oceans and are food for many other animals.,

Blue Whale

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