Cetaceans - Blue Whales (Balaenoptera musculus)
Blue whales in the Antarctic reportedly reached lengths of 110 feet (33.5 meters), however most probably grow to 80-90 feet (24.4-27.4 meters) long. Female blue whales are generally larger than males, and northern hemisphere blue whales are generally smaller than those in the southern hemisphere. Blue whales are light bluish gray on their dorsal side and mottled gray whitish on their bellies. They are the largest animal that has ever lived.
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