Franco Banfi / Beluga whale (Delphinapterus leucas) swimming under ice, Arctic circle Dive Center, White Sea, Karelia, northern Russia. Captive

Franco Banfi / Beluga whale (Delphinapterus leucas) swimming under ice and exhaling air, with scuba diver in background, Arctic circle Dive Center, White Sea, Karelia, northern Russia, captive

Doc White / Beluga / White Whale (Delphinapterus leucas) near sea surface. Canada, summer. Captive

Doc White / Girl in aquarium watching Beluga / White Whale (Delphinapterus leucas) in aquarium. Captive. Model released.

Dan Burton / Beluga / White whale {Delphinapterus leucas} White sea, Russia, captive

Hiroya Minakuchi / Beluga (Delphinapterus leucas) whale trio blowing toroidal bubble rings, play behavior, vulnerable, Shimane Aquarium, Japan

Hiroya Minakuchi / Beluga (Delphinapterus leucas) whale trio calling, vulnerable, Shimane Aquarium, Japan

Flip Nicklin / Beluga (Delphinapterus leucas) whale portrait in aquarium

Hiroya Minakuchi / Beluga (Delphinapterus leucas) whale blowing toroidal bubble ring, Shimane Aquarium, Japan

Hiroya Minakuchi / Beluga (Delphinapterus leucas) whale blowing toroidal bubble ring, Shimane Aquarium, Japan

Hiroya Minakuchi / Beluga (Delphinapterus leucas) whale blowing toroidal bubble ring, Shimane Aquarium, Japan

Hiroya Minakuchi / Beluga (Delphinapterus leucas) whale blowing toroidal bubble ring, Shimane Aquarium, Japan