Hello - new here! My 5 year old son has taken an interest in “rock collecting”. We have a cabin on Drummond Island, Michigan - part of the Upper Peninsula of Michigan. We found this in the shallow water of a rock beach of Lake Huron.
They look like bones in here to me, but I honestly haven’t a clue! I’m a history teacher, but one geology class in college hasn’t helped me much with this new adventure.
I appreciate any thoughts! Thank you!