-The Tree of Life - www.tolweb.org:
A complete online database with pictures and information of living and extinct creatures.

-The Variety of Life, Colin Tudge, 2000
A book with information about taxonomy, its history, and its impact on society. It also has an explorable and complete taxonomic tree, with living and extinct species, with information on each one and realistic drawings.

-Every Living Thing, Robb Dunn, 2009
The history of the big discoveries and discoverers behind our knowledge about the variety and diversity of life on Earth.

-Life as We do Not Know It, Petter Ward, 2005
An analisis of what life is, how different can be from what we conceive, and what could be possible to find in other planets.



Citation: García, A.I. 2015. The Tree Of Nature (Online) at http://thetreeofnature.com

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You can watch more of Álvaro García´s artistic work at http://viuh.deviantart.com