Question

英语翻译北极熊的视力和听力与人类相当,但它们的嗅觉极为灵敏,是犬类的7倍.它们主要捕食海豹,特别是环斑海豹,此外也会捕食

Answer 1

Polar bears and human vision and hearing quite,but they are extremely sensitive sense of smell,dogs are the 7 times.Their main predator of seals,especially ringed seals,bearded seals also will prey,saddle pattern seals,crown seals.In addition,they also capture the walrus,beluga whales,seabirds,fish,small mammals,carrion,occasional cleaning.Currently living in the polar bear around the world there is only more than 20,000