Newly Expanded Tree of Life (IMAGE)
Caption
This is an expanded view of the tree of life, showing that bacteria make up two-thirds of all Earth's biodiversity, half of that from uncultivable bacteria called 'candidate phyla radiation.' The Archaea and eukaryotes, which includes humans, makes up another third. The red dots represent lineages that cannot, at present, be isolated and grown in the lab.
Credit
Jill Banfield, UC Berkeley, and Laura Hug, University of Waterloo.
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