Information
Like
most rodents, mice need to take in little water. They
produce almost all they require under normal circumstances
by "burning" the carbohydrates in the food they eat and
using the water that is released in their bodies as a
by-product of the "burning". This metabolic water is produced
by larger animals, including man. But to these larger
animals, it is a minor source of water as their relatively
massive bodies demand far more water than such an internal
spring can provide.
Desert species, such as the spiny mouse, can survive happily
without any external source of water. As an extra water
conservation measure, such species produce only limited
amounts of droppings and a highly concentrated urine.
Some spiny mice can live purely on tiny quantities of
sea-water and even your ordinary house mouse can get by
almost indefinitely without liquids.
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