Did you know that the blue whale is the biggest animal that has ever lived. Her size is 80 feet long and she weights 120 tons. When a baby whale is born it is born with 23ft long and it weights 5,000 pounds!!! The blue whale is the loudest animal on earth. You can her from miles away! The blue whale eats tiny shrimps called krill the whale eats 40 million of them a day.The blue whales live in the surface of all oceans. Her scientific name is balaenoptera musculus. She has blue gray skin and she has light spots on her back and on her side. The blue whales are endangered because of over fishing.