Survival by reverse hibernation

[Catherine]

Animals like bears store fat and prepare to hibernate in the cold months. They find a sheltered place and slow right down and live off their fat.
Reverse hibernation, or estivation, is a response to extreme heat and dry conditions. The animal digs a burrow or finds a cooler space and slows its metabolism down so it can survive without a food or water source in the extreme heat. 
West African Lungfish live in rivers that can dry up. They burrow into the mud and can stay there as long as a year.
Desert tortoises dig a burrow and wait out the heat of summer.
Gila Monsters hide in burrows or rock crevasses during the extreme heat of summer. It lives off the fat stored in its tail.


https://www.forbes.com/sites/scotttraver...-lifespan/

It is amazing what animals will do to survive. They sleep through the heat or they sleep through the cold.
Some fly south or perhaps fly north. The one thing animals do is find ways to survive.