e Arctic ecosystem.РGlobal warming has an impact on the ice.РThe ice is melting quickly in north and south pole. And that have a bad influence on polar bears. ? Due to the global warming, Arctic ice began to melt, the polar bear’s home has been destroyed, the prey is also a corresponding reduction inРPolar bears are in danger, we must take measures to protect the kind of beautiful and lovely animal. Because it is the treasure of nature.РPhysical characterРThe polar bear's claws are short and stocky .Рthe teeth are larger and sharperРPolar bear fur consists of dense under fur and guard hairs.РnoseРAppearanceРsmall head ,small ears and round neck ?long, wide, foot and leg and palm are hirsute?good swimmer?black skinРProjectРDATAРLengthР240~260cmРWeightР400~800kgРSpeedР60km/hРLifeР28~40 years
全文预览
