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At the height of summer, with 24 hours of sunlight a day, over half the sea ice melts away.
在盛夏時節，一天24小時都有日光，超過一半的海冰融化了。
The beaches of Svalbard provide safe places to haul out for one of the arctic's special residents... Walruses.
斯瓦巴群島的海灘，給北極最特別的居民之一--海象，提供了能夠躲避的安身之地，
They forage for shellfish for up to 17 hours at a stretch.
它們覓食甲殼類，一次能夠長達17個小時。
Now... It's time for a rest.
現在該休息了。
Each adult male weighs more than a tonne.
每只成年公海象重達超過一噸。
And heaving oneself over the sand... without the support of water is very hard work.
不仰賴水的幫助，要在沙地上移動是非常困難的。
This male has a particular sunbathing spot in mind.
這只公海象的心中有個做日光浴的理想地點。
Right in the middle of the 50-strong huddle.
就在50只海象堆的正中間。
A prod helps in parting the crowd. Almost in.
刺一下有助于分散群眾。快進去了。
At last, he can settle down for a snooze.
它終于能安穩打盹了。
Swaddled on all sides by the bodies of his neighbours.
四周都被鄰居的身體團團圍住。
But it's not a peaceful spot.
但這個地點可不平靜。
Sleep isn't easy when a fidgety bedfellow decides that he has an itch that needs scratching.
當一個煩躁不安的睡伴覺得癢得需要抓撓時，睡覺就不那么容易了。
This is the time to moult, to get rid of one's old fur with all its parasites, and expose the healthy new coat beneath.
這是換毛的時節，連同寄生蟲一起，擺脫舊毛，并且露出底下健康的新衣。
These days, Svalbard's summer temperatures can soar to 22 degrees celsius.
如今斯瓦巴群島的氣溫可高達22攝氏度。
Flushing red by bringing blood close to the skin helps them to keep cool.
它們讓血液流近皮膚，滿身通紅，有助于保持涼爽。
But some overheating is unavoidable.
但某些過熱狀況仍無可避免。
Especially for a big male.
尤其是大只的公海象。
Enough is enough. Getting up here was a slog. But this male has found a better way of getting down.
適可而止了。來到上面舉步維艱。但這只公海象找到更好的方式到達底部。
Let gravity do the work.
借助地心引力。
Now, that... is cool. Ahhh! Everyone is doing it. It saves both time and energy.
這可真是涼爽。大家紛紛跟進。省下時間與精力。
But walruses will need all the tricks they can find.
但海象會需要用上所有能用的招數。
