Con su teoría de la evolución por medio de la selección natural, Darwin explicó el origen del hombre a través de procesos naturales, vinculando así a todos los seres vivos y dando sentido a la vida. Sin embargo, en su día Darwin no estuvo seguro de si debía hacer pública la teoría que lo hizo famoso. A su regreso del viaje en el 'Beagle' no estaba dispuesto a oponerse a las ideas creacionistas imperantes en Gran Bretaña, por lo que demoró más de veinte años la difusión de su obra. En ese tiempo, escribió varios cuadernos de notas, en los cuales esbozó la teoría de la selección natural con ayuda de sus observaciones acerca de los ñandúes, los pinzones, las tortugas y los fósiles que encontró en América del Sur y en las Galápagos. En ' el descubrimiento del árbol de la vida', Niles Eldredge revisa esas notas en busca de indicios que revelen en qué momento Darwin dejó de ser un creacionista curioso y se convirtió en evolucionista. A un tiempo biografía de Darwin e introducción a la selección natural, esta obra es también una investigación de los cambios intelectuales e intuitivos del hombre que formuló la teoría de la evolución. ¿Cómo llegó Darwin a la teoría de la evolución? ¿Cómo interpretó sus descubrimientos? ¿Por qué esperó veinte años para publicar su teoría? ¿Qué lo motivó, finalmente, a atribuirse su autoría? En el trayecto, Eldredge crea un apasionante retrato de Darwin el humanista, el naturalista, el pensador y el evolucionista. La celebración del bicentenario del nacimiento de Darwin, el 12 de febrero de 1809, encuentra en esta obra una de las más sutiles, autorizadas y apasionantes pinturas del hombre y sus ideas.
Niles Eldredge (born August 25, 1943) is an American biologist and paleontologist, who, along with Stephen Jay Gould, proposed the theory of punctuated equilibrium in 1972.
Eldredge began his undergraduate studies in Latin at Columbia University. Before completing his degree he switched to the study of anthropology under Norman D. Newell. It was at this time that his work at the American Museum of Natural History began, under the combined Columbia University-American Museum graduate studies program.
Eldredge graduated summa cum laude from Columbia College of Columbia University in 1965, and enrolled in the university's doctoral program while continuing his research at the museum. He completed his PhD in 1969.
In 1969, Eldredge became a curator in the Department of Invertebrates at the American Museum of Natural History, and subsequently a curator in the Invertebrate Paleontology section of Paleontology, a position from which he recently retired. He was also an Adjunct Professor at the City University of New York. His specialty was the evolution of mid-Paleozoic Phacopida trilobites: a group of extinct arthropods that lived between 543 and 245 million years ago.
Eldredge and Stephen Jay Gould proposed punctuated equilibria in 1972. Punctuated equilibrium is a refinement to evolutionary theory. It describes patterns of descent taking place in "fits and starts" separated by long periods of stability.
Eldredge went on to develop a hierarchical vision of evolutionary and ecological systems. Around this time, he became focused on the rapid destruction of many of the world's habitats and species.
Throughout his career, he has used repeated patterns in the history of life to refine ideas on how the evolutionary process actually works. Eldredge is proponent of the importance of environment in explaining the patterns in evolution.
Eldredge is a critic of the gene-centric view of evolution. His most recent venture is the development of an alternative account to the gene-based notions of evolutionary psychology to explain human behavior.
He has published more than 160 scientific articles, books, and reviews, including Reinventing Darwin, an examination of current controversies in evolutionary biology, and Dominion, a consideration of the ecological and evolutionary past, present, and future of Homo sapiens.
Eldredge enjoys playing jazz trumpet and is an avid collector of 19th century cornets. He shares his home in Ridgewood, New Jersey with his wife and more than 500 cornets. He also has two sons, two daughters-in-law, and five grandchildren.
Eldredge possesses a chart of the historical development of cornets (the musical instruments), which he uses as a comparison with that of the development of trilobites. The differences between them are meant to highlight the failures of intelligent design by comparing a system that is definitely designed, with a system that is not designed.