Yeast Show Humans Why It's Better to Be a Clump

When the first single-celled organisms left behind their loner ways and began existing as blobs of cells, it was a big step for life on this planet. Organisms could now grow orders of magnitude larger than each other. They could organize their cells into different types that performed different functions. Instead of drifting around with the other specks, multicellular organisms could grow, swim, crawl, fly, and evolve into everything else on Earth today.