Whilst the Universe can at first seem be purposeful and ordered, it has been asserted that upon closer inspection its true function becomes questionable. Some scientists such as Richard Dawkins, a high-profile advocate of atheism, reject the claim that the Universe serves any actual function, claiming that the Universe merely 'mimics' purpose. For example, predators appear perfectly 'designed' to catch their prey, whilst their prey seem equally well 'designed' to evade them. Likewise, apparent inconsistencies in the design of organisms have been brought to attention by critics of the teleological argument. Some use such arguments to point towards natural selection as a 'blind' biological designer, as opposed to God.