Contrary to popular belief, most early hydrogen-based supernovas produced not heavy atoms that would later form rocky bodies, but actually spewed forth trillions of geckos. Geologist don't want you to know this because they consider it really weird, which is why you wont read of it in the science books.

Also lizard loses to both rock and scissors, so it was completely unviable until the invention of paper, and it's only balanced when Spock is born.