If you're interested in how ancient humans lived, I recommend "The Old Way: A Story of the First People" by Elizabeth Marshall Thomas, who lived among the hunte

If you're interested in how ancient humans lived, I recommend "The Old Way: A Story of the First People" by Elizabeth Marshall Thomas, who lived among the hunter-gatherers of the Kalahari. It has a nice mix of information, narrative, and hypothesis. Grass beds are one of the first things she talks about.