More than 500 million years ago, single-celled organisms on Earth's surface began forming multi-cellular clusters that ultimately became plants and animals. Just how that happened is a question that has eluded evolutionary biologists. Now scientists have replicated that key step in the laboratory using common Brewer's yeast, a single-celled organism.
More than 500 million years ago, single-celled organisms on Earth's surface began forming multi-cellular clusters that ultimately became plants and animals. Just how that happened is a question that has eluded evolutionary biologists. Now scientists have replicated that key step in the laboratory using common Brewer's yeast, a single-celled organism.