The detached stretch above gives the answer why these experiments didn't were continued.
Religious prejudices against any possibility to approach human specie with other monkeys as our most near relatives than that God, which may shake this beliefs
The futile search for Bigfoot - Science/Technology - NewsObserver.com
The picture historians and sociologists have pieced together is that Bigfoot and other shaggy humanoids are cultural inventions that we have repeatedly conjured so that there's always something wild and mysterious in the woods.
No fossil record
The cryptozoological faithful are convinced that monstrous beings must be out there, just out of reach.
If you browse the Bigfoot Field Researchers Organization website, for example, you'll find more excuses than hard evidence. Despite the ubiquity of smartphone cameras and the accessibility of camera traps, there are no clear photographs of the mythical ape.
The site asserts that sightings are fleeting because Sasquatches are smart enough to avoid unwanted pictures. As for the lack of a body or bones: "No serious work has ever been done to look for remains of surviving wood apes in areas where they are rumored to reside," the BFRO website says.
If Bigfoot – also called Sasquatch – were real, there would be ways to detect the creature's existence. For one thing, there would be a fossil record of large apes moving into North America, probably from Pleistocene Asia. But fossil nonhuman apes have never been found in North America.
Field biologists study elusive living species by using camera traps, analyzing genetic data from scat, and following footprints. There should be a wealth of compelling evidence from such sources – but all we have is an abundance of purported sightings.
Given the number that Sasquatch clubs busy themselves with, I should be able to look out my window each morning and see Sasquatch families raiding my trash cans for leftovers. Bigfoot aficionados protest that they have found tracks, hair, and other evidence. But photos show nothing more than a lack of rational skepticism.