There is a type of South American vine Boquila trifoliata aka chameleon vine that mimics the shape, size, texture, and color of leaves from nearby plants - including fake plastic plants! And how it does this is mostly a mystery. It's the only known polymorphic mimic in the plant kingdom. Amazing.

A critical look at web defaults, arguing that web performance is capable of essentially matching native performance when the right approach is taken but this approach often requires deep knowledge or extra work, because the most performant settings are not the defaults (as they are in native environments). Compelling.

Finally a good way to generate PDFs