The present paper describes a polar bear stalking, and then retreating from a hauled out walrus. Other instances of confrontations between these species are discussed. Adult male walruses that are hauled out have, due to their size, little fear of polar bears. (DBO)Gjertz...
题目 Each year,Jon Aars,a senior researcher at the Norwegian Polar Institute and his colleagues capture around 70 polar bears in Svalbard and fit them with a tracking collar (颈圈) which continuously records movement.Once a day the collar makes a satellite call,sending...
aPolar bears hunt on the land and in the sea.Their favourite food is seal.The polar bear's nose is very powerful.It can smell a seal from 32 km away!But polar bears cover their noses with their paws when they hunt.They do not want their prey to see a black nose in the white snow...
And this particular verse really captures my attention, particularly as related to the plight of many of our endangered, threatened and beloved wildlife; including lions, tigers, cheetahs, leopards, elephants, rhinos, polar bears, etc., etc. And while few question the precipitous drop in populatio...
Can an anaconda break human bones? Contrary to myth, the snake does not crush the prey, or break its bones. However, several natural observations exist involving wild Anacondas that showbroken bonesin large prey. ... Further, multiple species of snakes have been shown to constrict with pressur...
Most of the time animals are just reacting to what's going on around them based on their emotions. All animals have a few basic instincts in common – the urge to eat, the urge to stay alive and the urge to reproduce (in other words, have babies). ...
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Do polar bears prey on walruses in Svalbard (Arctic Ocean)Gjertz, IGJERTZ, I. 1990. Do polar bears prey on walruses in Svalbard? Fauna 43:54-56. (In Norwegian with English summary).