Tardigrades, or fondly called 'water bear' can survive any and all of the following: extreme pressure, radiation, the vacuum of space, boiling, freezing (close to absolute zero) and dehydration.
They can go without water for 10 years (and probably a lot longer), entering cryptobiosis (extreme hibernation) and reducing their metabolism to less than 0.01% of normal.
And they only take a short while to return to normal with the reintroduction of water.
In order to survive during cryptobiosis, the tardigrade enters a state called a ‘tun’. This happens very quickly and makes them practically indestructible.
All of these and they make you go ‘awww’, no?