Bigfoot and ET in cahoots???

Okay I picked up a book at the library called "The Big Book of the unexplained" (10/10 in case you wanna know.)

Anyway in the midst of all of its intrigue theres a chapter called the Sasquatch Saucers and it deals with many cases of Bigfeet and Aliens appearing and interacting with each other.

One case involved two men follwoing a saucer to a canyon where it met with several hairy hominids. They turned and saw two of them standing behind them. The things just stared at them for a moment and the men ran.

Another case involved two men who found a small buzzing black box on the ground. They backed off and encountered two Nordics who told them they did the right thing to back away. Then a Bigfoot came out of the bushes and approached the box. It changed frequency and the sasquatch died.

Does anyone know of any other encounters involving sassie and ET? I find it interesting as people often wonder if we were an alien experiment. Maybe we are, and the Bigfoot is only a partial success