Morning Scepticism: Cryptozoology

Before going off and trying to confirm a belief in a particular mythological creature, the first step should be a plausibility study. Just as no-one os going to find kangaroos in the Swiss Alps, maybe first checking it against what is already known about biology: cladistics, biogeography, ecology, etc. - the tools are there. So until one can give a plausible biological account and some hard evidence to match, presenting that odd footprint as being made by a Big-foot is just hearing hooves and concluding unicorns.