Things You Should Know About Blue Whale.
Things You Should Know About Blue Whale. Blue Whale size Blue whales are 20 to 2 5 meters in length. It is a mammal. It weighs 80 to 90 tons. The lifespan of a whale is 60 to 80 years. She gives birth to a cub once every two to three years. The giant mammal Slateia … Read more