Record-breaking TV adventurer Bear Grylls has tested his survival skills in scorching deserts, dense jungles and freezing mountains, but now he's taking on a very different challenge.
Sonali went to grill Grylls about his latest mission and even found out what poo he prefers!?!
Don't worry, it's not something he does for fun it's a survival technique.
It's only as a last resort, but if you're stuck in the middle of nowhere with absolutely no other water source, you can drink the fluid from fresh animal dung!
Pictures courtesy of Bear Grylls: Born Survivor, Channel 4 and Discovery