Discovery Channel's "Dual Survival" series and a multitude of other survival shows have already shown us extensively that one never need give up all hope (just 90% of it) if/when stuck in the middle of nowhere, and they have taught us in detail what it takes to survive in very hostile environments. Provided, of course...
... Provided you're a barefoot blond Indian who knows everything about fire, water, protein-rich insects and shelter, or you're a gung-ho alpha-male woodsman who can take on an alligator and win, or you're a tough army vet who'd survived duties in Iraq and Afghanistan.
And provided your name is Bear and you'd climbed Everest only 18 months after having suffered a parachuting spine injury, and you enjoy drinking your own wee-wee, and you're a fucking left-wing sleazeball.
What this great show hasn't shown us yet, however, is how very fat people could survive in extreme conditions and dire situations. Not for a lack of trying, though! Discovery Channel already shot an entire season of a "Dual Survival" spin-off series called "Fatties in the Wilderness", but due to various legal and technical difficulties all of these episodes were shelved and never shown to the public.
The media has underestimated me once again, coz I can get my grubby hands on anything I want. And here it is. These are snapshots of all the episodes. What the series lacks in educational value it makes up for in sheer shock value.