Whales are large marine mammals known for their impressive size and intelligence. They belong to the order Cetacea, which includes both whales and dolphins. Whales can be divided into two main groups: baleen whales, which filter-feed on small organisms, and toothed whales, which hunt larger prey. These magnificent creatures can be found in oceans around the world, often migrating long distances in search of food and breeding grounds. Whales play a crucial role in maintaining the health of marine ecosystems. Their feeding habits help regulate the populations of other marine species, while their waste products provide essential nutrients for oceanic plant life. Conservation efforts are vital to protect these incredible animals from threats such as hunting, habitat loss, and climate change.