Squirrels don't hibernate like most animals do during winter. They don't have a water tank to store fluids, but they drink the snow and water from bird feeders.
Squirrels are extremely thirsty creatures and need access to water all the time. Especially in the summer, they can easily become dehydrated.
They need about 30 to 60 milliliters of water a day, but that can increase in hot weather. In addition, they need more water during pregnancy or lactation.
Baby squirrels need even more water because they're dependent on their mother to keep them well hydrated. Squirrels also lose water through sweating, peeing, and pooping.
A squirrel can quickly lose up to 10% of its body weight without food and water. This is considered serious dehydration and may result in death if left untreated.
In addition to losing fluids, a squirrel can suffer from low blood pressure and muscle weakness. It might also become lethargic and have poor vision.
In general, most animals can survive up to a few days without food and water. However, if a squirrel is stuck in a small space or can't find enough water, it might die.
The best way to keep a squirrel healthy and happy is to provide them with water every day. This can be done by offering them a bird bath or bowl of water. It's important to make sure that the water is clean and free of algae or mold.