At birth, beluga whales are 5 feet long, roughly 100 pounds, and dark blue-gray in color. Unmistakable as adults, their color lightens to white, and they have a dorsal ridge rather than a fin. Belugas ...
Instead of a dorsal fin, belugas have a dorsal ridge, which allows them to swim under sheets of floating sea ice with ease—an adaptation that helps them hide from orca predators. (Their genus ...
At birth, beluga whales are 5 feet long, roughly 100 pounds, and dark blue-gray in color. Unmistakable as adults, their color lightens to white, and they have a dorsal ridge rather than a fin. Belugas ...
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