Xianghua's too busy arguing bots to present actual evidence for what's supposed to be a scientific argument. I've said that design is easy to spot so here's the evidence.
Lady's and gentlemen, I give you
The Penguin!
The penguin is a fully autonomous, self-replicating submersible robot. Despite the cool tuxedo look, the penguin has no discernable purpose or function whatsoever. These classic hallmarks of design are as absent from the penguin as they are from every other living organism. They're undeniably cute but you're ultimately left wondering what they are for.
But let's look under the hood. Built on a bird chassis, the penguin needs to surface regularly to avoid running out of air. That's right, it's a submarine that can drown. Being a flightless bird, the penguin has to waddle onto land to reproduce. This leaves it extremely vulnerable to predation, a fate that the penguin cleverly avoids by nesting in environments so inhospitable that even the most tenacious predators won't venture there. To prevent the egg or the chick from freezing solid one of the adults incubates it, sitting stoically on a glacier in a blizzard without eating, sometimes for weeks. The penguins that do not drown, freeze or starve typically fall prey to orcas, sharks or leopard seals; fully autonomous, self-replicating penguin grinders.
This quick overview of the penguin should demonstrate a clear lack of either intelligence or design, much less any combination thereof.