TimeTree Puts an Evolutionary Family Tree of Life's Diversity at Your Fingertips

Researchers at the Center for Biodiversity at Temple University have released the latest and greatest version of TimeTree, an interactive visualization of the history of life on Earth.

Read Article >>>


Next Generation TimeTree: An expanded history of life on Earth at your fingertips

Temple University's scientists Sudhir Kumar and S. Blair Hedges, of the Institute for Genomics and Evolutionary Medicine (iGEM) and Center for Biodiversity, have had a longstanding goal to develop easy-to-use tools to make evolution more accessible for everyone

Read Article >>>


TimeTree: evolutionary iPhone app shows when you shared an ancestor with chimps

A new iPhone app, TimeTree, allows users to see in a few moments how long ago they shared a common ancestor with any species on Earth.

Read Article >>>

Discover Magazine

The Fruit That Hit Newton's Head Is Down With the Fruit of Darwin's Head

Querying the Timetree application accesses a vast database of data, the National Center for Biotechnology Information's comprehensive taxonomy browser, which contains information on more than 160,000 organisms.

Read Article >>>

Scientific American (Podcast and Article)

When Did You and Your Ferret Evolutionarily Diverge? There's an App for That

There's a cool new Web site—and iPhone app—that could come in handy in a wide variety of circumstances. It's called Time Tree. And it tells you how closely related any two organisms are over time.

Read Article >>>

Science Daily

Smartphone App for Genes on Earth Is Tool for Scientists and Entertaining for All

The scientists who put an innovative tree of life online last year now have made that same resource available -- free -- for smartphones. The new \"TimeTree\" application lets anyone with an Apple iPhone harness a vast Internet storehouse of data about the diversity of life, from bacteria to humans.

Read Article >>>


Free App Tells You Everything You Want To Know About Life On Earth (Video)

The project of compiling all the world's data on species evolution was started online last year, but now the whole thing is available to anyone with an iPhone. If you're interested in the links different species have to one another on the evolutionary time tree, you'll be able to look it up in just a few seconds.

Read Article >>>

Scientific Computing

New App For Genes On Earth Is Tool For Scientists And Entertaining For All

The ultimate goal of the whole Timetree of Life project, according to Hedges, is \"to chart the timescale of life -- to discover when each species and all their ancestors originated, all the way back to the origin of life some four billion years ago.\"

Read Article >>>

The Register

Steve Jobs in iPhone bitchslap to creationists, Tea Party

Apple has taken a stance which will upset a lot of Americans: it has allowed an app which specifies quite clearly that evolution is real and that humans and monkeys share a common ancestor some 30 million years in the past.

Read Article >>>

ASU News

Grasping the tree of life: There's an app for that, too

The TimeTree app harnesses a vast Internet storehouse of data on life forms ranging from fungi to foxhounds, putting this information in the palm of one's hand. The intuitive interface is designed to answer a simple question, quickly and authoritatively: When did species A and species B share a common ancestor?

Read Article >>>

Book Reviews

Journal of Sedimentary Research

Journal of Sedimentary Research (2010)

We both enjoyed reading this book. It is obvious, from the very beginning of the book till the end that UOP, the book editors and the numerous authors have delivered a magnificent piece of work.

Journal of Sedimentary Research (2010)


Geologos (2010) 16, 133-135

We are convinced that this well-thought-over book will still be valuable when its information will have become partly outdated. Undoubt- edly, this volume is an exciting gift to Darwin's 200th anniversary. Read and enjoy it!

Geologos (2010) 16, 133-135

Zentralblatt Fur Geologie und Palaontologie

Zentralblatt fur Geologie und Paläontologie (2010) 2009, 930-933

Undoubtedly, the volume edited by HEDGES & KUMAR is an exciting gift to geoscientists now, at a time of the DARWIN's 200 anniversary. The reviewer recommends this book strongly for all palaeontologists, geologists, and all other specialists interested in the evolution of the life.

Zentralblatt fur Geologie und Paläontologie (2010) 2009, 930-933

Integrative & Comparative Biology

Integrative and Comparative Biology, volume 50, number 1, pp. 141–145

The new book offers an impressive compilation of evolutionary history, including the relationships among organisms and their times of divergence, which together form a timetree of life.

Integrative and Comparative Biology, volume 50, number 1, pp. 141–145

Systematic Biology

Syst. Biol. 58(4):461–462, 2009

A timely compilation of the data currently available and is therefore a unique resource for anyone interested in evolutionary biology in the broad sense.

Syst. Biol. 58(4):461–462, 2009



New Timetree paper published in MBE TimeTree: A Resource for Timelines, Timetrees, and Divergence Times


Added confidence intervals and min-max ranges for divergence time estimates.


Updated the TimeTree database which now contains > 97,000 species.


Updated the TimeTree database with new data (3,163 studies; > 93,000 species).


Added timeline and timetree search functions. Web site given graphical redesign.


Released TimeTree v4.0 with new data (2,687 total studies; 50,060 timed nodes).


Released TimeTree v3.0 with new data (1,209 total studies; 25,342 timed nodes). Web site redesigned with results now appearing on home page, and in a more streamlined, concise, format based on user feedback.


Released TimeTree iPhone Application V1.0 (Download from Apple Store: search for \"TimeTree\")


Released TimeTree v2.1 with new data (total studies = 842; 13,588 timed nodes)


Instructional YouTube video Kelly Explains TimeTree


Released new iPhone Application V0.8 (Download from Apple Store: search for \"TimeTree\")


Release of TimeTree v2.0, with new data and many new features. The web site appearance was redesigned, with greater width and more options, including electronic resources for the newly published book The Timetree of Life. Divergence time data from 500 new studies were added to the 181 studies previously in TimeTree, bringing the database up-to-date. It now contains data from all organisms and MOST studies published up to the end of 2008. Please send citations for any studies not included to TimeTree using the contact page.