Cryptic 'Kongs'

Yeti, Bigfoot, Orang Pendek, Almas, and others are cryptic primates that have have been reported in sightings and physical evidence such as footprints over many years.
But how reliable is this evidence, and short of the actual body of such a creature, can it show a skeptical science establishment and the world that they really do exist?
This was the task the author set himself - to review recent evidence for these so-called 'wild men', some of which reach large sizes, rather like the fictional 'King Kong'.
The book sets out current knowledge of wild men, and proposes a possible evolutionary tree. What conclusions will be reached?