The polar bear is one of the main predators of seals that live in the Arctic. Bears and weasels are the pinniped’s closest relatives on land. Seals are descended from land mammals. The pinnipeds branched off from their land-based relatives 50 million years ago. The closest living land re...
The ringed seal is the most common seal in the Arctic. It is one of several ‘ice seals’; seals whose entire life-cycles take place on ice rather than on land. The ringed seal is a member of the earless seal family, Phocidae. Members of this family, who are also known as ‘true...
However, part of the solution lieswith the polar bears themselves.Polar bears are highly specialsed. This means that theyhave got used to living in a specific area and eating specificfood. Polar bears live above the Arctic Circle(北极圈) and eatfish and arctic mammals such as seals. Their ...
However, part of the solution lies with the polar bears themselves Polar bears are highly speciaized. T his means that they have got used to in a specific area and eating speci fic food. Polar ears live above the Arctic Circle (北极圈)andeat fish and arctic mammals such as seals bodies...
Polar bears live above the Arctic Circle (北极圈) and eat fish and arctic mammals such as seals. Their bodies are different from those of other types of bears. Polar bears have webbed (有蹼的) feet for swimming, thicker fur and more body fat for living and swimming in cold conditions, ...
However, part of the solution lies with polar bears themselves. Polar bears are highly specialized. This means that they have got used to living in specific areas and eating specific food. Polar bears live above the Arctic Circle and eat fish and arctic mammals such as seals. Their bodies ...
Antarctic Fur Seals Antarctic dogs Shackleton's JourneyWilliam GrillAges 7-12 When the Sun Shines on AntarcticaAnd Other Poems about the Frozen Continent Ages 8-12 Frozen Planet - Complete Series - BBC, 2011DVD and Blu-ray Instant video Antarctica:An Intimate Portrait of the World's Most Mys...
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Arctic Hares dig through winter snows to find sources of woody plants, lichens, and mosses. In warmer seasons they have easier access to tree bark, roots, berries, leaves, and buds.
由第四段中的“They stand on theice and wait for the seals to come up for air. "可知答案为A。4.B推理判断题。由第一段中的“Paul Nicklenwaited patiently on a sheet of ice in the Arctic. Hewas there to take pictures for National Geographic. "可推断,Paul Nicklen是摄影师。故答案为B。5...