The Blue Whale is largest whale and the largest living creature on earth. Blue whales were hunted a lot for oli, baleen, meat, and other products from the 1930s to the 1960s. This hunting almost caused the extinction of the species. They are now protected and may gradually be returning in several areas.

Blue whales are mainly found in very cold waters, like the Arctic and  Antartic waters. They migrate to the tropics in the winter and to the Arctic and Antartic in summer.

Blue whales can reach over 24 m (80ft) long; mature females are usually a bit longer than mature males. They weight betwen 87,500 - 142,500 kg. The skin has a light grey anda white spotty pattern.