Are these from bugs in my wood slabs?
I have a couple of photographs below that I’m hoping someone can make sense of for me. One set is from a sugar maple slab. I’m fairly certain the picture shows big holes. The area was partially rotted when I got the slabs (or at least it was very wet).
Then, I am showing another photo of a walnut slab with a peculiar pattern. The wood is developing some significant cracks so I’m not sure if the pattern is from the cracks or from some boring bug.