The thorny devil stays hydrated thanks to its skin, which pulls water away from moist grains, against gravity, and into its mouth!!!
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The ridges and spikes on their skin transport a even a single drop of water from the back to the mouth and by sipping some water like a drop deep in burrow.
Some cactuses in the desert have water in them
Desert snakes drink water. They may get it from cacti, or oases.
Water
As with most animals, they drink water when it is available.
WATER
Desert Rat (Gerbil) Kangaroo Rat
drink the water out of the radiator...
Some get the hydration from their prey, and some get it from the water in the desert cactus.
Water, and lots of it, is the preferred drink while in the desert. Alcohol and sugary soft drinks can lead to dehydration.
When water is available, such as after a rain, they drink water. Otherwise they depend on their food to provide needed moisture.
They drink water when irt is available but can also absorb some water from the plants they eat.
you would drink your own pee by purifying it with plastic because theirs hardly water in the desert.