It may feel good and be good exercise but it has nothing to do with our "natural selves" because we were never animals. Beware of evolution propaganda
"It's a way of reconnecting with our natural selves," says Darryl Edwards, author of the book Animal Moves and founder of the Primal Play Method. "I don't want to be a caveman. I'm happy in the 21st century. But I want to move in a way that feels more natural and instinctive."