Then it was rearranged to be little stuff versus big stuff, i.e. bacteria versus multi-cellular life.
But the story keeps getting more complicated. Here is the story from 30 years ago:
Now there is the "web of life" and much more complicated story:
Yep... now they claim "giant viruses" as a 4th domain of life. It just gets wierder and wierder the older I get. next thing you know they will add in a domain for Martian life and then we will be off to the races!
Carl Zimmer has an article in Discover magazine that argues that there are 4 domains of life, no the 3 domains of 30 years ago.
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