Keep in mind that historically, people have starved not because there was nothing edible to be found, but because they did not, or would not, recognize those items as food.
"Most commonly, people starve to death surrounded by edible matter–just no food. There is the essential issue, because “food” is not just edible matter, it’s the culturally constructed subset of edible matter. That mismatch has garnered a small fortune for the producers of “Fear Factor.” Bull’s penis is entirely edible–it’s even a high-priced delicacy consumed by China’s elites to bestow sexual potency–but it isn’t “food.” At least not in our culture.
ome of the examples of this mismatch are simply astounding. The single most famous example of cannibalism in American history is that of the Donner party–a group of 31 settlers bound for California who became trapped in the Sierra Nevadas in the winter of 1947. Though fed with pine nuts by Paiute Indians earlier in their travels, they still resorted to cannibalism and ultimately starved to death–in the middle of a large pine grove. They used the pine trees for fuel and even cut many of them down, but they never used them for food. It simply never occured to them: pine nuts and pine bark simply were not “food.” Pine had long been a “starvation food” for Native Americans in these areas; when all else failed, you could always eat the pine. It was rarely the first choice, but in desperate circumstances, it would suffice. The Donner party was desperate, and ate every “food” they could think of–even rawhide, bones and leather. But they didn’t eat things that weren’t “food”–and pine simply wasn’t “food,” even though they had been fed a meal of pine nuts a short time before.
Or, consider the plight of the Viking colonists of Greenland, as related by Jared Diamond in Collapse. Fish had long been a staple of Norse life, and like other staples (bread in European cultures, or rice in Japan), that entailed two, seemingly discordant attitudes. First, every meal required some portion of it: it is the prescence of some amount of the staple, more than portion size, that separates a “meal” from a “snack.” Secondly, eating just the staple is a sign of poverty, as in “bread and water.” Yet, in Greenland, we find no sign of fish associated with the Viking settlements. Couldn’t it simply be a matter of the fish not being preserved very well, or otherwise hidden from us? Diamond runs through a number of the theories proposed on this account, most of which are patently ridiculous, and comes to a very good point with this:
The trouble with all those excuses for the lack of fish bones at Greenland Norse sites is that they would apply equally well to Greenland Inuit and Icelandic and Norwegian Norse sites, where fish bones prove instead to be abundant.
Yes, fish bones decompose faster, so we need to look at contemporary Norse sites for comparison, to see how much of their fish bones survived. Short answer: a lot. Even more at the Inuit sites, because Greenland isn’t just a fisherman’s paradise–it’s also an archaeologist’s dream. The soil composition and the cold means that nearly everything in Greenland is incredibly well preserved. We have preserved sheep lice and fecal pellets from the Norse colonies–both of which decay far more quickly than fish bones. As Diamond put it:
Every archaeologist who comes to excavate in Greenland refuses initially to believe the incredible claim that the Greenland Norse didn’t eat fish, and starts out with his or her own idea about where all those missing fish bones might be hiding … I prefer instead to take the facts at face value; even though Greenland’s Norse originated from a fish-eating society, they may have developed a taboo against eating fish.
In the end, the Viking colonies of Greenland starved to death–next to a sea teaming with fish. To the end, they never touched them. Their Norse cousins lived on fish; they knew this. They lived in full view of the Inuit, who lived happily as they starved to death. They called them skraelings–”wretches”–because they were naught but ignoble savages. Savages who survived–and quite happily–while the civilized Europeans died a long, agonizing death. They ate their herds of cows, even the young, all the way down to the hooves–a clear sign that they had given up on the future. They ate their dogs. And again, in the end, they ate each other. But to the very end, they never ate fish."
http://anthropik.com/2006/01/thesis-28- ... y-survive/
Don't be like the Vikings.