I don't think Bigfoot eat humans but likely eat deer instead and other animals

However, when I have been near Bigfoot beings they have telepathed with me which is how they communicate like all animals and birds do too. I suppose some birds like Crows have their own langauge like the squawking they make when they see men which means to them danger. However, if you observe Crows the ONLY make this certain squawking noise when they see men or women or children which means "Danger!" to other crows. But, if you can be unobserved you will never hear this squawking if they aren't aware of you or other people at all. 

So, telepathy is the most universal form of communication between living things on this planet actually.

If you can slow yourself down enough (especially if you are a city person) then you can if you are slow enough in how you are every day you can hear trees and animals communicate with you. It's not with your ears you hear them though it's through what sounds like mental words that you are not making up. It takes time to learn how to communicate with animals and birds and trees, however because different things are important to them than to human beings.

So, even if you hear them in your mind often you won't believe what is important to them because they have different needs than you do.

Trees are fascinated with how people move but think it's strange we have to wear clothes to stay warm. Animals like Dogs think we do pretty strange things when we build things or put away dishes or silverware but as long as we feed them they are okay with our strange behavior. They often love us as long as we keep them warm and feed them and are nice to them. They are pack animals which means they are mammals and tribal like us so we become their pack or family when we raise dogs as puppies sort of like human babies in a way as members of our families.

Rocks and mountains and cliffs have similar ways of thinking which is sort of like they see us much the way we view flowers because they live millions of years. So, to them, we are very temporary. Really old trees are little like this like redwoods that live thousands of years here in California. The old ones (the Redwood Trees) are very special to be around because they have lived so long.

Bigfoot are similar to humans in that they might mate with a human being if this was agreeable to both parties so there are part bigfoot part human people all over the world but they tend to have special abilities from this relationship. I'm not entirely sure how all this works I just know this can happen.

It's maybe like how we all have some Neanderthal blood which makes our immune systems stronger because Neanderthals had a much stronger usually Blood Type O blood which is called "Caveman Blood"

because it is the most ancient of blood types.