2021-02-27
Twin polar bear cubs asleep in a snow den in Wapusk National Park, Manitoba, Canada (© AF archive/Alamy)
鸟瞰施内贝格山脉-奥克森峰，德国 (© Felix Meyer/Adobe Stock)
We don't really need an excuse to feature this adorable photo of twin cubs asleep inside a snow den in Wapusk National Park in Manitoba, Canada. But it just so happens that today is International Polar Bear Day, the perfect day for this shot from the 2007 documentary film 'Earth,' which focuses on wild habitats and creatures across the planet.
Twin polar bear cubs asleep in a snow den in Wapusk National Park, Manitoba, Canada (© AF archive/Alamy)
鸟瞰施内贝格山脉-奥克森峰，德国 (© Felix Meyer/Adobe Stock)
We don't really need an excuse to feature this adorable photo of twin cubs asleep inside a snow den in Wapusk National Park in Manitoba, Canada. But it just so happens that today is International Polar Bear Day, the perfect day for this shot from the 2007 documentary film 'Earth,' which focuses on wild habitats and creatures across the planet.
2021-02-28
Traditional farmhouses at Skaftafell, Vatnajökull National Park, Iceland (© Jarcosa/Getty Images)
斯卡夫塔山中的传统农舍，冰岛瓦特纳冰川国家公园 (© Jarcosa/Getty Images)
Roofs of sod have sheltered mainland Scandinavians through countless winters and summers. But those who migrated from Norway's grass-roof log cabins to this Icelandic tundra in the 9th century found none of the rich timberland of their homeland—just wispy birch forests and grassy fields. To survive the cold, they took the old turf roof concept and built on it, encasing not only the roofs but the walls of their birch-framed homes in layers of living, insulating soil.
Traditional farmhouses at Skaftafell, Vatnajökull National Park, Iceland (© Jarcosa/Getty Images)
斯卡夫塔山中的传统农舍，冰岛瓦特纳冰川国家公园 (© Jarcosa/Getty Images)
Roofs of sod have sheltered mainland Scandinavians through countless winters and summers. But those who migrated from Norway's grass-roof log cabins to this Icelandic tundra in the 9th century found none of the rich timberland of their homeland—just wispy birch forests and grassy fields. To survive the cold, they took the old turf roof concept and built on it, encasing not only the roofs but the walls of their birch-framed homes in layers of living, insulating soil.