The most promising candidate for a “natural engine” is proton flows across thermal vents that theoretically could generate high-energy molecules.
Since the films showcased their exquisite designs, more discoveries increase the wonder of hummingbirds, sea turtles, and butterflies.
The ground under your feet is literally moving. The continents are drifting apart near an average rate of one inch per year.
Our planet’s view of the sun is critical to life, obviously, but equally critical is that it’s a shielded view.