标签加拿大下的文章

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辛华达瀑布，加拿大贾斯珀国家公园 Sunwapta Falls in Jasper National Park, Alberta, Canada (© Schroptschop/Getty Images)

Falling for the Canadian Rockies

Sunwapta Falls is one of several waterfalls in Jasper National Park in Alberta, Canada, formed by hanging valleys. These valleys were created 8,000 years ago when glacier ice receded. Sunwapta Falls is actually a pair of waterfalls, a lower and upper one. Their water comes from the Athabasca Glacier, so volumes are higher in the summer due to seasonal glacial melting. Jasper National Park is the largest national park in the Canadian Rockies, with more than 4,000 square miles for camping, hiking, water sports, and other activities. Wildlife in the park includes elk, grizzly bears, moose, bighorn sheep, and caribou.

瓦普斯克国家公园内向洞穴外张望的北极熊幼崽，加拿大马尼托巴 Polar bear cubs looking out of their den in Wapusk National Park in Manitoba, Canada (© Robert Harding/Alamy)

Anybody out there?

This is the time of year that polar bears emerge from their winter dens. In today's photo, these adorable cubs are peeking out for the first time in their young lives. Polar bears don't technically hibernate, but in fall, a pregnant female polar bear will dig a maternity den in the snow (although in some areas it'll be under the peat soil). While in her small den, the bear enters a dormant state, sleeping nearly all the time, until she gives birth, usually between November and February. Then, in spring she'll dig herself out and emerge with her recently arrived cubs. Polar bear cubs stay with their mother for about two years as they learn to survive in the Arctic.

The cubs in this photo are in Wapusk National Park in Manitoba, Canada, which is known as the 'Polar Bear Capital of the World.' It's one of the best places to see polar bears in their natural environment—especially when they move there in the fall, waiting for Hudson Bay to freeze before heading out to hunt for seals.

加拿大恶地里石窟上方的银河，加拿大亚伯达省德拉姆黑勒 (© Felis Images/Minden Pictures)

魁北克老城区的景色，加拿大 View of the Old City in Quebec City, Canada (© RENAULT Philippe/age fotostock)

Frozen fun in the Canadian cold

Not far downriver from Montreal, where the banks of the St. Lawrence River widen as it approaches the Atlantic, lies Quebec's picturesque and often chilly capital. Quebec City, one of the continent's oldest European settlements, is often called the most European city outside Europe. It's the only North American city outside Mexico whose fortified walls still stand, and its winding streets showcase a French-tinged exemplar of old Romantic architecture (typified by the steep-roofed Château Frontenac in the photo's foreground).

The mid-sized metropolis has been central to French Canadian life for over 400 winters, and the annual Quebec Winter Carnival—which kicks off today—is one of the largest and oldest cold-weather celebrations on Earth. Thousands of Quebecers and visitors will spend the next 10 days ice skating, enjoying night parades, exploring the festival's ice palace, and dressing up for the Château's masquerade ball. A few will even perform winter feats like the ice canoe race, where boaters pilot specially-equipped canoes across the freezing St. Lawrence, intermittently stepping out to carry their vessels over huge ice chunks.

亚伯拉罕湖中的冰泡，加拿大艾伯塔省 Bubbles in the ice of Abraham Lake in Alberta, Canada (© robertharding/Alamy)

Frozen beauty

Located on the North Saskatchewan River, Lake Abraham is an artificial lake and Alberta's largest reservoir. Even though it's man-made, it takes on the blue color of other glacial lakes in the Rocky Mountains. In winter, the lake draws nature photographers interested not just in the wildlife and spectacular landscape, but also the lake's odd appearance when it freezes over. Bacteria on the lake bottom feed on dead organic matter and release the methane bubbles you see here. When the surface water freezes, the bubbles get trapped, creating a photographer's dream. They may be beautiful, but these frozen bubbles can be dangerous because they're highly flammable. If you happen to be lighting a match nearby, you'll want to watch out or the released methane could explode. The bubbles aren't so friendly to the environment, either; methane emissions are a major part of global greenhouse gas emissions, which contribute to climate change.

安大略省的圣诞树农场，加拿大 Christmas tree farm in Ontario, Canada (© FatCamera/Getty Images Plus)

A growing business

Today we're showing off a serene scene at a Christmas tree farm outside Peterborough, Ontario, Canada. If you were to visit a farm like this, however, it's unlikely you'd find much peace and quiet. Of the 25 million to 30 million natural Christmas trees sold each year in the US alone, 98 percent of them come from farms. 'Tis the season for tree chopping. Oregon, home to the popular noble and Douglas firs, produces the most Christmas trees of all US states, shipping much of the harvest to California. North Carolina, of Fraser fir fame, comes in at No. 2. Canada is the world's largest exporter of Christmas trees, spreading holiday cheer around the world.

Tonight, the National Tree Lighting Ceremony in Washington, DC, will be held in President's Park near the White House. President Trump will push a button to illuminate a towering evergreen, just as other presidents have done since the first ceremony in 1923.

Canada gives thanks // Canadian Thanksgiving

We're looking at a fall sunrise in Alberta, Canada, in honor (or should we say 'honour’) of Canadian Thanksgiving. The holiday is officially celebrated on the second Monday in October, though many families gather the previous day. The first known Thanksgiving celebration in Canada was organized by English explorer Martin Frobisher in 1578 when he reached Newfoundland. Years later, American loyalists who were faithful to England during the Revolutionary War moved to Canada and brought traditions with them, such as eating turkey on Thanksgiving. A Canadian Thanksgiving table is also likely to have a cornucopia, a ram's horn (or horn-shaped basket) filled with festive-looking fruits and grains. Regional dishes might also include salmon and Nanaimo bars—a layered chocolate dessert.

Until this year, football was also part of the tradition, with the Canadian Football League hosting games every year from 1958 to 2018. For the 2019 season, however, no games were scheduled as the league considers some broader scheduling changes.

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