What were they eating? It didn’t taste like anything she had ever eaten before and although she was famished, she didn’t dare ask. She knew the answer would be one she didn’t want to hear.
Since they are still preserved in the rocks for us to see, they must have been formed quite recently, that is, geologically speaking. What can explain these striations and their common orientation? Did you ever hear about the Great Ice Age or the Pleistocene Epoch?