Skeptic Benjamin Bradford recently wrote about the possibility of Bigfoot sightings being misidentified animals. In our opinion, this is an age-old argument that is incredibly naive. According to Bradford, animals that can stand on two legs are quite common in areas where Bigfoots are spotted. He states that bears, chimpanzees, bonobos, and baboons can all do this for a brief period of time.
What makes his argument so naive is the fact that most sincere witnesses have probably ruled out those possibilities. The first thing witnesses will tell you is that they are sure it wasn't a bear that they saw. Most will tell you that they are damn sure it wasn't a 7 foot tall chimp or a coyote standing on its hind legs.
Bradford via news.discovery.com:
The field of cryptozoology doesn't merely include unknown animals like Bigfoot, but also those "out of place" -- animals known to exist but rarely if ever reported outside of their natural habitats.
If a person walking in the woods sees a large, hairy bipedal creature, he or she is likely to assume it's Bigfoot. But Bigfoot is of course not the only large hairy animal that can stand on two legs; bears, for example, can stand and even briefly walk on two legs, as can chimpanzees, bonobos, baboons and other animals.
Other large animals such as moose or elk, when seen from behind and/or in near-darkness, can also appear to be standing on two legs and therefore Bigfoot-like.
In these cases the reason that an eyewitness rules out a known animal in favor of an unknown one is that he or she assumes that there are no wild animals in the area that could look like that. Clearly, that is not always the case.
As wild animals lose more and more of their native habitats they are drawn closer to cities and towns. Coyotes and bears, for example, have become an increasingly common sighting in many areas. And that's only the tip of the iceberg.