研究人员认为这些发现可能可以在有必要识别个体的社会型动物中通用。
The researchers believe the findings likely apply to all social animals where recognizing individuals is critical.
他们这么说的原因是狗狗们更勤地使用大脑,因为像它们那样友好的、社会型的哺乳动物的大脑比那些喜欢独处的、冷漠的动物拥有更多的灰质。
The reason, they claim, is that dogs evolved bigger brains because friendly, social mammals need more grey matter than solitary, aloof ones.
这些动物包括了社会型的啮齿类动物、海豚、鲸鱼、马、社会型的食肉动物(例如狼和鬣狗),以及灵长类动物——包括人类。
These include social rodents, dolphins, whales, elephants, horses, social carnivores (such as wolves and hyenas), and primates — including humans.
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