Thursday, January 24, 2008

The Tree of Life loses a branch


No poetry here - just a report by Norwegian and Swiss Biologists (taxonomists?) who claim to have eliminated a branch of the Tree of Life by joining two previously separated branches of eukaryotes (all non-bacterial/archaeaen organisms), shrinking the number of eukaryotic branches from 5 to 4.

The eukaryotic branches are now:

• Plants (green and red algae, and plants)

• Opisthokonts (amoebas, fungi, and all animals—including humans)

• Excavates (free-living organisms and parasites)

• SAR (the new main group, an abbreviation of Stramenophiles, Alveolates, and Rhizaria, the names of some of its members)



Read the article here.

-Image reproduced from www.apollon.uio.no-

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