The polar seas are some of the coldest places on Earth, and yet a huge number of creatures lives there. In this book, we find fish that have their own antifreeze, giant whales, tiny shirmp-like krill and many other fish, birds, and mammals. We look at the delicate balance of life in polar waters and why they are vital to life on Earth. With vivid photographs and clear text, Polar Sea Life is a fascinating introduction to this important environment.