Bats roosting in caves produce ample guano, which may explain why prehistoric marks left by humans cannot be found in some places where they are expected.Bats roosting in caves produce ample guano, which may explain why prehistoric marks left by humans cannot be found in some places where they are expected.Read MoreBats, Caves and Caverns, Art, Archaeology and Anthropology, Paleontology, France, Research, Geomorphology, your-feed-science, your-feed-animals
