Eusocial colonies are common among insects such as bees and ants, but the only examples in the mammal world are among furry and the naked mole rats.

群居的族群现象在如蜜蜂和蚂蚁等昆常见，但在哺乳动物，只有毛鼹鼠和裸鼹鼠会是这样。