I agree. This has probably been happening for millions of years. Bats often live in dense colonies in caves and tree trunks with small exits making rat predatio

I agree. This has probably been happening for millions of years. Bats often live in dense colonies in caves and tree trunks with small exits making rat predation possible. Some native Arctic peoples have traditions of killer whales eating people, although officially they have only killed people while in captivity. A person in a skin kayak would be easy prey for one.