It's time for the arctic ground squirrel (北极松鼠) to get her underground home ready. Winter is long and cold in northern Canada. Plants can't grow so there are no leaves or grass for animals to eat. They must find other ways to live. The arctic ground squirrel “sleeps” the ...
Zazula said the centre is working on an exhibition where the discovered Arctic ground squirrel will be displayed among other specimens in their collections for visitors. The paleontologist told theNewsthat the Beringia Centre is not looking at doing any kind of research on the discovered squirrel be...
so there are no leaves or grass for animals to eat.They must find other ways to live.The arctic ground squirrel"sleeps"the winter away.For months the ground squirrel has been eating lots of seeds,mushrooms,and berries.Now she is fat.The extra fat will keep her alive through the winter....
In the far north, well above the Arctic Circle in Alaska, ground squirrels (地松鼠) are like little balls within a deep hole in the ground. If you look at one , you might think it is dead. The squirrel is as cold as ice.Its body temperature is -2°C. Its heart beats only once...
Winter is long and cold in northern Canada.Many days,the air is colder than the air in your freezer.Plants can't grow,so there are no leaves or grass for animals to eat.They must find other ways to live.The arctic ground squirrel"sleeps"the winter away....
Plants can't grow, 6 there are no leaves or grass for animals to eat. They must find other 7 to live. The arctic ground squirrel sleeps the winter away. For months the arctic ground squirrel has been eating lots of seeds, mushrooms and berries. Now it is 8 . The extra fat will ...
Winter is long and cold in northern Canada.Plants can't grow,2_there are no leaves or grass for animals to eat.They must find other 3_to live.The arctic ground squirrel "4_" the winter away.Actually,it isn't really sleeping.It is hibernating(冬眠). ...
Arctic ground squirrelhabituationhandling and movementhibernationUrocitellus paryiiHibernation is a unique physiological adaptation characterized by periods of torpor that consist of repeated, reversible and dramatic reductions of body temperature, metabolism and blood flow. External and internal triggers can ...
Winter is coming. It's time for the arctic ground squirrel (北极松鼠) to get her underground home ready. Winter is long and cold in northern Canada. Plants can't grow so there are no leaves or grass for animals to eat. They must find other w
Hibernation is not possible in the Arctic, because there are no frost-free refuges; all the nonmigrant, warm-blooded animals therefore must remain active all winter. Any incipient hibernation, shown for instance by the arctic ground squirrel, proves abortive, as the animals will shiver themselves...