I'd say they keep their babies warm by giving them their body heat.
It does not hurt them. They do this to protect them and keep them warm.
They're born with really warm fur, so they can keep warm w/o the parents having to do anything special.
The smaller the baby, the harder it is for that baby to keep warm (this follows from the fact that the ratio of surface area to volume increases as objects or babies get smaller). Premature babies are kept in incubators, to keep them warm.
Mother Rabbits care for their babies by burrowing them to keep them warm and giving them milk once a day.
These socks will keep babies' feet warm outside in reasonable weather.
If a mother rabbit is rejecting her babies, you should try to keep the babies warm and fed. You can also consult a veterinarian or a wildlife rehabilitator for advice on how to care for the babies properly.
she is doing that to keep them warm... Dont do anything.. let the mouse do what it is doing.
It is to continue to line her nest for her kits.
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Babies are put into a machine called an incubator, which provides heat controlled by a thermostat since babies can't keep themselves warm without help.
Bedbugs and other insects lay eggs and move on. They do not incubate the eggs.
Warm because the water babies will get hot and exploded