Coyotes tend to have a lot of variations, many western populations average from 50 to 90 pounds and like to eat small to large dogs, some plains populations average only 18 to 25 pounds, never really thought of Lynx or bobcat as particularly dangerous, they tend to be shy, I have seen mountain lions, they can be fearless, but don't regard me as food. I would love for chupacapra to be real, but their is a canid in south Texas that may be new to science, it may be a mutant hybrid and may be the animal that inspired the myths, personally I think they r Mexican grey wolf x coyotes with sampsons syndrome.