They ate all the meat. This is the stuff they threw out.
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I think I misunderstood earlier.
What you’re saying is, this is bait for meat?
“This isn’t food, this is what food eats.” — Red Forman
This shows that there was agriculture earlier than previously thought. It’s often hard to get a firm idea, because a lot of materials (meat or not) doesn’t survive to be tested. It is known that woven fabrics and baskets were in use a really long time ago because they survived long enough to leave an impression on (for example) clay.