[brudgers]

Assuming nothing kills you in nature

Weather is the only likely natural hazard outside polar bear country (and to a lesser extent grizzly country because grizzlies are less likely to see you as food). And if you are in polar bear country weather is extreme.

But as the saying goes “there is no bad weather just poor clothing choices.”

[rafram]

If you’re lost in the wilderness, hunger and thirst are the real concerns.

[southernplaces7]

Sorry for the huge response to your passing comment but:

Not really. Statistically, the things that most often kill people lost in the wilderness are exposure and following that, accidents that outright kill or weaken the body's ability to deal with the weather and thus accelerate exposure effects. You do not need freezing temperatures to die of exposure. Even being exposed to mild cold, but continuously, and particularly if wet or partly submerged in water, will eventually bring your body down to hypothermic temperatures.

Hunger is barely a factor because you can go without food for an exceptionally long time before you weaken severely, let alone die, and though we need water to live quite soon, it's rarely impossible to find unless you're in a very arid place. In either case, if the weather is bad and you're under-dressed, that's what will kill you well before you need to worry about dropping from hunger or even thirst.

As for wild animals, they're your single lowest worry, despite being the things that tend to most scare people about the wilderness (thank our ancient hunter/gatherer instincts for this, since they led to us not immediately fearing things we'd adapted ourselves to handling well, like weather and sources of nutrition, but continuing to fear the things we couldn't easily control, like lurking beasts).

Generally, you'd have to be incredibly unlucky to be the victim of something like a bear or puma attack and forget completely about attacks from any other animal, since they're nearly unheard of.

Just to be clear, with most of the above i'm referring to North America or at least to some sort of northern or southern temperate region that may include deserts, forests, prairies, etc, and not tropical conditions or wildlife.

In tropical conditions, and especially jungles, the calculus changes quite a bit, with exposure being less of a risk (though one can be surprised by unexpected cold, as has happened to me in outright jungles deep inside central America where you wouldn't fucking expect to feel really cold, but holy shit!.) Certain kinds of wildlife also become much more of a danger in tropical places, though with few exceptions, the really problematic ones won't be the big predators. Instead you can genuinely worry about smaller things that sting or bite with venom.

Edited for way too many spelling mistakes.