> DNA is extremely flexible, there's no macroscopic form or shape it can't take, as various insects camouflaging themselves as sticks and leaves and what not shows.
That feels like a really bold claim given the evidence.
Physically you could have wheeled animals, but wheels just won't evolve. They are perfect for somewhat smooth surfaces where you want to travel in a somewhat straight line. Organisms just cannot confine themselves to that and survive.
Unless we find a planet composed entirely of solid smooth rock we won't find wheeled animals.
That feels like a really bold claim given the evidence.