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Depends on the age. If it comes from time before agriculture, then it might be a remaining of an ice age hunting trap.
by baybal2 5y ago
Depends on the age.
If it comes from time before agriculture, then it might be a remaining of an ice age hunting trap.
- grandchild 5y agoIt says in the article that they're fairly recent (around 150 years ago). So agriculture seems likely.
- baybal2 5y agoThen, most likely they are.