Produced in Spanish, this series contains 20 lessons on the intermediate level for teachers to use in foreign language science study. One of the largest land carnivores on the earth can be found around the coasts, islands and floating ice of the Arctic regions of the world. This animal is known as the polar bear. Although their cubs weigh only two pounds at birth, males grow up to weigh about 880 pounds, and the females can weigh up to 550 pounds. This animal is known for its white fur and black skin, and polar bears are also the only true marine bear. In fact, their bodies are longer than other bears, which make them streamlined for swimming.