With their prominently large melon and bright white color, the beluga whale is the easiest whale species to recognize and probably the most familiar. Also called white whales, belugas are actually born gray or brownish in color, fading to white by the time they are 5 years old. They are nicknamed “sea canaries” due to their distinct, and unique vocalization of loud squawks, whistles, squeals, and clucking, filling the sea with beautiful music.