This is just so cool, there is nothing more to add. Simply marvel at the hierarchical complexity of the natural world.
Except, while you’re doing so, you could consider the interaction of scales in a multiscale system, such as an ecosystem. Oh, and this…
“How doth the little crocodile
Improve his shining tail,
And pour the waters of the Nile,
On every golden scale!”
Click the image to proceed