Delclay

Although no one knows who created the delclay. But it is well known that they are the result of biological engineering. There are many types of delclay, an entire ecosystem in fact, within the tunnels of Terralan and much later the earth surface and human society. Many of which are very hazardous to humans. However, what all delclay have in common is their rapid evolution, while being resistant to cancers and genetic diseases. Some consider them the ultimate lifeforms.