"Since nobody has demonstrated to me any corroborating evidence, like footprints in direct association or hair intertwined in any of these [tree] structures, I'm much more inclined to think the majority of them are just natural occurrences," he said.

Another piece to this problematic scenario was that as soon as Meldrum suggested he couldn't place any credibility in just one footprint, suddenly another one was found -- another right footprint. When he looked a little further, he found a third print, "but it was also a right and I said it would be nice to find a left one, and I said facetiously, 'Is the Yeti playing hopscotch here?'" (See Meldrum inside the cave in the video at the top of this story.)

"But my point was simply that if this was a spontaneous line of tracks, we'd expect to see both rights and lefts," he said. "And why is it that the tracks are only leading out and none are leading in? "If an animal is occupying this cave, it's not going to sleep on this cold, wet ground. It's going to have some kind of a bed or a nest of sorts. And just as if on cue, I'd barely got the words out when one of the [officials] raised his torch beam and there, under a little alcove on the side, was this neat little fern bed or mattress or nest."

Despite his skepticism of what happened in Siberia, Meldrum nonetheless believes there's been enough real and anecdotal evidence over many decades that suggests there might really be tall, hairy, unknown hominids in the Siberian region with similar characteristics to reported Bigfoot and Sasquatch sightings found elsewhere in the world.