funny picture... got spades, anyway with regards to the topic...
first thing... can u build a fire? do u have a knife? if there water?
if yes, they do those camping thingie tat suspends your food to be roasted. else can find bamboo, dig out the inside, and put your food inside to roast. or wrap in banana leaf.
fish can be eaten raw, juz make sure to gut the bigger ones. alot of innovative ways to fish too, without equipment.
if your really interested in this topic, check out Man vs Wild, on Discovery Channel. this "crazy" guy, Bear Gills gets dump some where in the world, with a knife, flint and a bottle of water, he has to survive and find a way out.
cheers!
usually in a jungle there is probably some materials that u can use to cook
