Bigfoot and their elusive ways could be because the legendary creatures are scared that "man can pose a threat" to their lives, an expert said.

Rare sightings and chance encounters with the mysterious beasts have spurred some social media users on as they look for evidence to the existence of the Sasquatch.

But one expert believes the folklore legends are wise to man, and are actively going out of their way to avoid people because they know the encounters could be fatal for them.

Their "elusive tendency" may go a long way in explaining why there are so few, if any, sightings, an expert has revealed.

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