Related tangent (on wild bees that nest in the trunks of very old British oaks): https://news.ycombinator.com/item?id=29137277 https://news.ycombinator.com/ite

Related tangent (on wild bees that nest in the trunks of very old British oaks): https://news.ycombinator.com/item?id=29137277 https://news.ycombinator.com/item?id=29137277 ("Ancient bees found in Blenheim palace estate")