"Regardless of which behavior strategy the bears were using, they all lost weight at similar rates, which highlighted that those bears were more active," Pagano said.. "Basically, they were compensating for their higher activity levels through the terrestrial foods they were...
Ezzell, Carol
The polar bear is an animal that can survive in harsh environments. The polar bear is spread in Eurasia and north America along the Arctic Ocean.polar bears live in the ice covered waters of the Arctic Circle.The preferred habits is ice floes s in the Arctic Ocean. Eating and hunting: Th...
T here's also evidence that polar bears are changing their feeding habits . They are not only eating seals but also snow geese , caribou and berries .But polar bear populations are still going down in many areas of the Arctic, and if the weather condition keeps making the se a ice ...
As this year draws to a close, it is worth noting that over the last 12 months — and contrary to predictions andheadlines, including claims about “the warmest year ever” — polar bears have not been reporteddying, starving, or eating each otherin large numbers, orrelentlessly attacking pe...
The meaning of POLAR BEAR is a large creamy-white carnivorous bear (Ursus maritimus synonym Thalarctos maritimus) that inhabits arctic regions.
17.Polar bears, desert gazelles and sharks were allthe list of species facing extinction. 北极熊 、 沙漠瞪羚和鲨鱼都已经被列入濒临灭绝的物种. 18.A ringed seal scans for polar bears before snatching a breath. 一只环斑海豹在浮出水面前扫视周围是否有北极熊. ...
In 1987, two polar bears killed an 11-year-old boy who sneaked into the bears' enclosure in the Prospect Park Zoo in Brooklyn. The exhibit was renovated most recently in May 1999 in hopes of creating a habitat that most resembles their natural environment in the wild. Marlin Perkins, who...
As it turns out, alternative food sources for the polar bears aren’t completely out of the question. For as long as biologists have tailed after the animals, they’ve seen polar bears eating animals found on land like caribou(驯鹿) and snow geese---as well as the snow geese’s eggs....
Younger bears with less mass can run for as much as 2 kilometres without stopping. In their sleeping habits, they are much like humans; they sleep for about 7 hours at a time and they also like to nap. In winter, they dig shallow depressions in the snow, place their backs to the ...