A section of yew (Taxus baccata) demonstrating 27 annual progress rings, pale sapwood and dark heartwood Even though the bark features being a protective barrier, it can be by itself attacked by tedious insects which include beetles. These lay their eggs in crevices along with the larvae chew their way https://succeedinlife.co.uk/the-ultimate-guide-to-choosing-the-best-cat-tree-scratcher/