03/10/2025
You know how we’re often taught that evolution is a brutal, solitary struggle? The story of "survival of the fittest," where everyone is competing, fighting for their piece of the pie. It can feel like a narrative that justifies a certain kind of cold, competitive world.
There was a scientist named Lynn Margulis who looked at that story and said, in essence, "That's not the whole picture. In fact, it misses the most beautiful part."
She was a brilliant evolutionary , but she was also a mother, a thinker who saw the world through a different lens. At a time when her male peers were focused on competition and genes, she was captivated by collaboration—by the profound power of symbiosis.
She proposed a radical idea. That the very cells which make up our bodies, and the bodies of every plant and animal, weren't always the discrete units we see now. She argued that complex life began when simpler ancient microbes didn't fight and consume one another, but instead, chose to merge. One bacterium swallowed another, but instead of digesting it, they formed a partnership. The swallowed bacterium became the energy powerhouse—what we now call the mitochondria—inside the larger cell. Another microbe, capable of capturing sunlight, was incorporated and became the chloroplast, the source of life for all plants.
It’s a staggering thought. The very foundation of our existence is built not on a battle won, but on a partnership forged billions of years ago. Our cells are, in a very real sense, a collective.
Margulis faced immense pushback for this idea. It was dismissed as fringe, as the work of a woman who wasn't following the dominant, aggressive narrative of science. But she was stubborn and brilliant, armed with overwhelming evidence. She persisted, building her case piece by piece, until the scientific community could no longer ignore the truth she was presenting.
Her life's work is a story that validates what so many of us know intuitively: that connection is a form of strength. That collaboration can be a revolutionary act. That the most profound transformations often happen not when we wall ourselves off, but when we come together, creating something new, resilient, and magnificent from the fusion of our different strengths.