The scientific name for the blue whale is "Balaenoptera musculus." This majestic creature is the largest animal on Earth, often reaching lengths of up to 100 feet and weighing as much as 200 tons. Blue whales are found in oceans worldwide, primarily in deep, open waters. They mainly feed on tiny shrimp-like animals called krill, consuming vast quantities during feeding seasons. Despite their immense size, blue whales are gentle giants and are known for their loud, low-frequency vocalizations, which are essential for communication and navigation in their vast marine environment.