Multicellularity

The leap from single cells to multiple cells working together as a single organism is as mysterious as the beginning of life itself. Many theories have been put forward some of which are visualised in this video like the idea of cells working symbiotically, or cells creating divisions within them, or colonies of cells aggregating together. More recent experiments have revealed that certain mutations may have led cells to develop the ability to attach to each other. We are all multicellular organisms, so this step and feature of evolution of these microscopic biocomputers working together in tandem is so fundamental to our existence.