IS bigfoot a giant human?

In 1912, eighteen skeletons were excavated from Lake Delavan, Wisconsin. These skeletons displayed facial characteristics similar to an ape, and a human skeletal structure. These individuals were measured at over 9 feet, had a double row of teeth, and six fingers and six toes. It was also estimated that they lived twice as long as homo-sapiens. This is not the only evidence of giant humans across the world; there have been at least 27 articles between the 1800's and 1900's regarding remains of such species. This is an important clue in determining the origin and existence of Bigfoot, as Bigfoot is described by eyewitnesses as a very large (between 6 and 11 feet tall) ape-like man with a domed head and large structure. This description is eerily similar to the many articles describing the Wisconsin tribe, and the estimated enormous life-span of this species of human could explain why a population of Bigfoot could sustain. It could also explain why we don't find remains. Remember, we weren't the only humans that roamed the earth. There were once three types of ancient humans. 30,000-year-old fossils prove that Neanderthals and modern humans were not the only species that roamed the Earth. In addition to Homo-sapien modern humans (which is what we are) there were the Neanderthals in Europe and western Asia, the Denisovans in Asia, and the "hobbits" from the Indonesian island of Flores. 

sources:
​http://www.bbc.com/earth/story/20150929-why-are-we-the-only-human-species-still-alive
http://www.sydhav.no/giants/newspapers.htm
https://www.youtube.com/watch?v=mOyozUUZpnY
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