Most biologists would agree that there is no consensus within the science as to what causes ageing. Although this is a widely studied topic, no single answer has yet been put forward to explain it. Biology only has loose answers to explain the origins of life on Earth, too. Although it is known certain conditions need to exist to sustain it, no explanation of what might have kicked-started it has been proven. Lastly, some of the geometric patterns found in nature have no explanation from the point of view of which biological processes are responsible for them.