When it comes to biological life, even the simplest single-celled organism is an astonishingly complex multi-part system.
What drives natural selection? Evolutionary forces. What are evolutionary forces? They’re what drive natural selection.
In the “just so” stories of the Darwinian narrative, these engineering solutions simply evolved. They emerged and got conserved.
When left to their own devices, the laws of nature tend toward death, not life. So what does it take for life to exist?
Does the five-digit design of the whale flipper, akin to the five-digit design of so many different kinds of animal limbs, point to evolutionary common descent?