Want to know, Why A Lot of People Cant Catch el Chupacabra or Big Foot or out of this world creatures:  Has it ever occured to people that maybe this creatures have a: STRONG SENSE OF SMELL...Nobody has every thought about it...Having the more advanced sense of smell is like been a Psychic...You know where each person is at,  how far, where, whether they just made 1 step or a few steps to the left...Because every human maybe is discharging an odor/smell from here to the next country/province....If i know you are, 3 miles away from me and you are moving to the left or away from me, i know when to strike...

Also what if through evolution you have developed your brain to: SEE SMELLS coming from miles away, which if you are aware it does happen rarely in humans....

what if your smell/odor tells how you are feeling, if you are sick or healthy, or what you are thinking, which by the way nobody knows how smell works....

so the creature knows what you are thinking, 10 miles before it can see you or come in contact with you...