The blue whale is the largest animal on Earth, growing up to 100 feet long and weighing up to 200 tons.
They are found in all the world's oceans, but their population is concentrated in the Southern Hemisphere.
They have a distinct blue-grey color and a streamlined body shape, which helps them move efficiently through the water.
They are filter feeders, consuming up to 4 tons of krill per day, which they filter through their baleen plates.
They can communicate over long distances using a complex system of vocalizations, including songs that can last for hours.
Despite their massive size, blue whales are gentle creatures and pose no threat to humans.
They have a slow reproductive rate, with females giving birth to a single calf every two to three years.
They are endangered due to whaling, habitat loss, and pollution, making their conservation crucial for ocean health and diversity.