It takes foresight to make complex tools and procedures that can restore the functions of other tools. A blind process can only see the immediate present.
Even tissues have to deal with the dead, and like everything else they do, they excel at it. The number of players involved in cell death is truly astonishing.
Cicadas and dragonflies use an exquisitely engineered “bed of nails” on their wings to disarm and neutralize bacteria.
DNA has long been considered the “master molecule” in genetics, but its erstwhile servant, RNA, is gaining increased recognition for its many essential functions.
I will flesh out the concept of biological information, and I will explain why significant quantities of it cannot be generated through natural processes.