What started as a single cell in 2018, invisible to the human eye, has now evolved into a multicellular beast about the size of a flea.
that life on Earth started with single cellular organisms roughly 3.5 billion years ago.
Yet little is known about how isolated cells that all looked and behaved the same evolved into multicellular life forms with specialized tissues capable of coordinated activity, roughly two to three billion years ago.The study is called the Multicellularity Long-Term Evolution Experiment , and researchers are hoping to run it for decades. The first major findings have come after 3,000 generations of evolution.
"We discovered that there was a totally new physical mechanism that allowed the groups to grow to this very, very large size,"First, the yeast cells in experiments evolved larger branches that reduced the overall density of the organism. Then, the branches tangled up with one another, forming a cluster that resembles the consistency of modern gels.
Ultimately, this new structure made the organism 10,000 times tougher than its single-celled ancestor. Not such a snowflake, anymore.
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