> Due to its unique vocalizations, which kind of whale is known as the "canary ofthe sea?"And the answer: Beluga whales. Photo credit: Shutterstock [CampCrazyPhotography, Shutterstock].Despitehaving no vocal cords, Beluga whales make a series of chirps, squeals, clicksand trills, which is why they're also known as the "canaries of the sea." Theyuse these sounds for communication, as well as for echolocation.The Beluga whale is an incredibly sociable, intelligent mammal that inhabits theArctic and subarctic regions of the ocean. At only 13-15 feet long, the Belugais much smaller than their other whale relatives, yet they more than make up forit in dexterity and skill. Belugas have the unique ability to move their headsand necks up and down, and side to side. Their bulbous forehead, called a"melon," is flexible and capable of changing shape. This means that they cancommunicate using facial expressions!At the top of the food chain, Beluga whales are integral to maintaining thehealth of the marine environment. Unfortunately, changes in the arctic climatecontinue to threaten the livelihoods of these fascinating mammals, as well asthe Indigenous communities which rely on them for survival. Beluga whales are playful creatures, and often enjoy interactions with humans.In fact, in 2009, one captive Beluga whale saved a distressed free diver duringa competition by pushing her to the surface! Other Belugas have been known toplay fetch, push boats, and raise their heads to receive affection from humans. Learn more about these singers of the sea here[https://www.nationalgeographic.com/animals/mammals/facts/beluga-whale].