What is a "baleen whale"?

Baleen whales are some of the largest animals on Earth, known for their massive size and distinctive feeding behavior. They have streamlined bodies with a smooth appearance and a unique, specialized feeding system. Instead of teeth, baleen whales have baleen plates hanging from their upper jaws, which act like a filter to catch small prey such as fish and krill. Baleen whales are known for their long migrations, with some species traveling thousands of kilometers each year. They are typically found in oceans and seas around the world, and their sheer size and gentle nature make them a captivating sight for wildlife enthusiasts and researchers alike.