Timetree (disambiguation)

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Timetree may refer to:

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<span class="mw-page-title-main">TimeTree</span>

TimeTree is a free public database developed by S. Blair Hedges and Sudhir Kumar, now at Temple University, for presenting times of divergence in the tree of life.. The basic concept has been to produce and present a community consensus of the timetree of life from published studies, and allow easy access to that information on the web or mobile device. The database permits searching for average node times between two species or higher taxa, viewing a timeline from the perspective of a taxon, which shows all divergences back to the origin of life, and building a timetree of a chosen taxon or user-submitted group of taxa. TimeTree has been used in public education to conceptualize the evolution of life, such as in high school settings. David Attenborough's Emmy Award-winning film and television program Rise of Animals used Hedges and Kumar's circular timetree of life, generated from the TimeTree database, as a framework for the production. The timetree was brought to life using animated computer-generated imagery in scenes every 10 minutes during the 2-hour movie. The original development of TimeTree, by Hedges and Kumar, dates to the late 1990s, with initial support from NASA Astrobiology Institute. Since then, it has been supported by additional grants from NASA, and by NSF and NIH. The current version (v5) was released in 2022 and contains data from 4,075 studies and 137,306 species.

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<span class="mw-page-title-main">Stephen Blair Hedges</span> Professor of evolutionary biology

Stephen Blair Hedges is Laura H. Carnell Professor of Science and director of the Center for Biodiversity at Temple University where he researches the tree of life and leads conservation efforts in Haiti and elsewhere. He co-founded Haiti National Trust.

Triumph of the Vertebrates is a 2013 British documentary film by David Attenborough. It is about the evolution of vertebrates. The first part is From the Seas to the Skies, while the second is Dawn of the Mammals. The film uses a circular timetree of life generated by scientists S. Blair Hedges and Sudhir Kumar, from their TimeTree database, as a temporal framework for the production. The timetree was created using animated computer-generated imagery in scenes every 10 minutes during the 2-hour movie. The circular timetree was published by Hedges and Kumar in 2009 and Hedges was consulted during the production of the film.

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<span class="mw-page-title-main">Timetree</span>

A timetree is a phylogenetic tree scaled to time. It shows the evolutionary relationships of a group of organisms in a temporal framework.

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