For all of our mastery of information processing, our ability to fabricate and motivate fine differentiated structures is really quite incredibly poor relative to biology. The little beetle is basically alien technology relative to the toy. But add in the fact that it can feed itself, repair itself and reproduce itself with a system that can scale 3-5 orders of magnitude up and down based on need is pretty mindblowing.
The mRNA vaccines might be one of the first times where we've leveraged biology to directly fabricate a discrete part with desired properties. Certainly in raw tonnage of output I can't think of anything that comes close. I feel like this is only going to advance with time, to the point where we may be growing robots instead of milling and printing them.