The first case of ursine tool use
第一只会用工具的熊
Ready for my close-up, Dr Deecke
Deecke博士,准备给我来张特写吧
PRIMATES apart, few mammals employ tools.
除了灵长类动物,会使用工具的哺乳类动物屈指可数。
Sea otters use rocks to smash clams open,
海獭会在石头上砸开蛤蜊;
dolphins wrap sponges around their noses to protect themselves while they forage on theseabed,
海豚在海床上觅食时,会将海绵绑在鼻子上以保护自身;
elephants swat insects with branches and humpback whales exhale curtains of bubbles totrap schools of fish.
大象会用树枝拍打昆虫;驼背鲸会呼出阵阵气泡来困住鱼群。
Until now, these four examples had been thought the extent of the non-primatemammalian tool-users club.
至今,人们仍认为非灵长类动物中只有这四种会使用工具。
But a study just published in Animal Cognition, by Volker Deecke of the University of StAndrews, in Britain, has added a fifth and rather surprising one.
但英国圣安德鲁大学的Volker Deecke在《动物认知》上刚发表的研究指出了第五种会用工具的动物,而且是令人相当意外的一种。
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