Is there any evidence that black bears (or other large predators) are indifferent to, or acutally repulsed by, the scent of humans?
I am hoping for more than anecdotal evidence about the negative effects on black bears of the human scent -- ranging from meh to Yecch.
This question is prompted by two anecdotes I have to offer: (1) I was sniffed by a black bear in my sleeping bag. The bear reminded me, even as I was rudely awakened. of a wine taster. Several Snuffles (intake) followed by several explosive Snorts. Fortunately, I was judged inedible. The bear wandered off. (2) A bear grabbed my pack from beside my sleeping bag, ripped it open, removed and eviscerated several packages of freeze dried food, but stopped at a barrier of filthy clothes, under which one package remained unscathed.
Is there evidence of the off-putting-ness of the human aroma more compelling than anecdotes similar to these? I am asking specifically about black bears, but would welcome answers about other predators at or near the top of the food chain.
This post was sourced from https://outdoors.stackexchange.com/q/19972. It is licensed under CC BY-SA 4.0.
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For certain, bears noses are good enough to smell humans, whether that is a deterrent or a sign that unsecured food might be nearby probably depends on the state of bear-human relations with areas like Yosemite where bears are used to humans being different from places with hunting.
Hunters hunting bears (or any other big game) will take care to hide their scent from bears, as otherwise the bears will simply leave the area.
As for the other parts of your question, bears have been known to hunt people and there is also a Skeptics question about whether lions and polar bears can sense menstruating women (yes for lions and polar bears, apparently not for black bears).
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