Good ideas and conversation. No ads, no tracking. Login or Take a Tour!
ecib · 3438 days ago · link · · parent · post: 500,000 year-old shell has engravings likely made by Homo Erectus
The closest I could come up with is a small animal with evenly spaced claws swiping down once with enough force to create three-ish grooves (yet not break the shell), and then doing the same one more time randomly starting at the apex of what would looks like an inverted 'V'. Maybe a creature was trying to get at the food inside the shell? Not very likely but if I had to posit a 'natural' process I guess that would be it.