Colony Behavior
Naked mole rats are rodents, but they live in communities like those of many insects. Several dozen rats live together in colonies led by one dominant rat—the queen. As in some insect species, the queen is the only naked mole rat female to breed and bear young.
Worker animals dig the burrows that the whole clan inhabits, using their prominent teeth and snouts. They also gather the roots and bulbs for the colony to eat. Other rats tend to the queen.
Most other types of mole rats live on their own or in small families. Though mole rats spend most of their time excavating and foraging in their burrows, they occasionally emerge to search for seeds or other plants.
One interesting fact is the mole rats cuddle each other to sleep, to keep themselves warm.
Movement
The legs of a Pygmy mole rat is thin and short. However, they are highly adept at moving underground and can move backward as fast as they can move forward.
Their large, protruding teeth are used to dig and their lips are sealed just behind the teeth, preventing soil from filling their mouths while digging. About a quarter of their musculature is used in the closing of their jaws while they dig.
Senses
A pygmy mole rat is almost blind, they live underground, in the dark. Therefore the main senses it uses is hearing, sight and smell.
Do include some sketches demonstrating the range of motion of the pygmy mole rat as well as its skeletal structure or even zoom in on their teeth gnawing motion Jiaying. Thanks!