[9(10Rs), CB270B/News.com:2000RT), UieszterhassMindon Pictures National GeographicCreative.20(10CTR), Norbert Rosing/National Geographic creative.2 (UP), Terry Biddle-2 (LOLE). Paul J. Richards Getty Images: 22 (UPLE).
Looks at the effect of hunting, pollution and habitat destruction upon the polar bear : then investigates efforts to preserve and protect them.
本书近距离地介绍了北极熊, 涵盖了北极熊如何找到海豹当可口的点心?为什么北极熊的毛是白色的而皮肤却是黑色的?全球气候变暖对北极熊意味着什么?等问题答案.
Avec Tom et Léa, pars explore l'Arctique, ce vaste continent entièrement fait de glace.
Korean edition of The Magic School Bus Science Series 12. The Magic School Bus: Polar Bear Patrol by Judith Stamper, illustrated by Steve Haefele, translated by Lee Han Eum. In Korean. Distributed by Tsai Fong Books, Inc.
Little polar bear
A dramatic story of life in the wild seen through the eyes of a polar bear mother and her two endearing cubs.
"Describes polar bears and their disappearing habitat"--
International Union for Conservation of Nature and Natural Resources, IUCN Polar Bear Specialist Group. ... Population ecology studies of the polar bear in the area of southeastern Baffin Island. Can. Wildl. Serv. Occ. Pap. No. 44 .
Population ecology studies of the polar bear in the area of southeastern Baffin Island . Can . Wildl . Serv . Occ . Paper No. 44 , 30pp . Stirling , I. , Calvert , W. and Andriashek , D. 1984. Polar bear ecology and environmental ...