Juvenile Beluga whale (Delphinapterus leucas), an endangered and protected species, lifts its head to take a look at the research vessel. Beluga calves are dark in colour and turn white at seven to nine years of age. St. Lawrence estuary, Canada

juvenile young calf beluga whale whales whale beluga delphinapterus leucas endangered protected surfacing calves dark change colour white st lawrence estuary canada north america one animal lone single eye swimming curious mammal cetacean sealife sea life one animal only solitary