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TimeTree of Life Book

Download chapters for FREE of this authoritative reference work which brings together, for the first time, experts on all major groups of organisms to assemble a timetree of life.

TimeTree for the
Mobile Web

View the streamlined site from your Android or iOS Smartphone. Compare species on the go!

iPhone App

Download our FREE updated mobile app (version 3.1) to compare species on your iPhone.

iPad App

Download our FREE mobile app (version 3.1) to compare species on your iPad.