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12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

TimeTree Screenshots

iPhone

About TimeTree

TimeTree 4 is a public knowledge-base for information on the evolutionary timescale of life. This application allows easy exploration of the thousands of divergence times among organisms in the scientific literature. A tree-based (hierarchical) system is used to identify all published molecular time estimates bearing on the divergence of two chosen organisms, such as species, compute summary statistics, and present the results. Names of two taxa to be compared are entered in the search window and the results are presented on a set of self-explanatory tabs.

TimeTree 4 contains data from 2,274 studies including 50,632 species. We will be adding more data in the future as it comes in from researchers.

TimeTree 4 requires iOS 8.0 or newer.

The TimeTree project is jointly directed by Blair Hedges (Center for Biodiversity, Temple University) and Sudhir Kumar (Institute for Genomics and Evolutionary Medicine, Temple University). This project has been supported, in part, by grants from the National Science Foundation, National Institutes of Health, NASA Astrobiology Institute, and Science Foundation of Arizona.

What's New in the Latest Version 4.0

Last updated on Aug 3, 2015

Old Versions

This app has been updated by Apple to display the Apple Watch app icon.

New universal app for iPad and iPhone.
New divergence times from over 2000 studies.
Numerous bug fixes and server updates.

Version History

4.0

Aug 3, 2015

This app has been updated by Apple to display the Apple Watch app icon.

New universal app for iPad and iPhone.
New divergence times from over 2000 studies.
Numerous bug fixes and server updates.

3.1

Dec 15, 2011

Calculations have been improved so that the times from any one study do not dominate the overall results.

3.0

Oct 5, 2011

The results displays have been updated to better reflect the new data.

1.0

Sep 13, 2010

Inconsistency in the way certain results were displayed have been fixed.

0.8

Jun 4, 2010

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