A chance encounter about 1.9 billion years ago, led to life on Earth, say scientists.
New research finds that an amoeba-like organism engulfed a bacterium that had developed the power to use sunlight to break down water to make oxygen.
The bacterium could have been intended as prey, but instead became incorporated into its attacker's body, transforming it into the ancestor of every tree, flowering plant and seaweed on Earth today.
http://www.dailymail.co.uk/sciencetech/article-1084251/Scientists-discover-chance-meeting-1-9bn-years-ago-led-life-Earth.html
1 comment:
Another theory... http://blog.wired.com/wiredscience/2008/12/in-a-vat-primor.html
If meteors hitting Earth's primordial oceans can be represented by balls of iron and carbon shot into a stew of water and ammonia, then meteor strikes may have triggered the evolution of life...
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