Juan Miguel Iglesias
Universidad del Turabo
Sistema Universitario Ana G. Méndez
Prof. Joaquin Echavarria
Thanks to the work of investigation of Scientifics and biologists as Charles Darwin, Gould and Eldredge, McClintock, Watson and Crick, Rosalind Franklin… and their contribution to the modern science, todaywe can see the enormous effect of their theories or their investigation on many fields of science.
Darwin for example had convinced most scientists that evolution as descent with modification was correct, and he was regarded as a great scientist who had revolutionised ideas. Though few agreed with his view that "natural selection hasbeen the main but not the exclusive means of modification", he was honoured in June 1909 by more than 400 officials and scientists from across the world who met in Cambridge to commemorate his centenary and the fiftieth anniversary of On the Origin of Species.During this period, which has been called "the eclipse of Darwinism", scientists proposed various alternative evolutionary mechanisms whicheventually proved untenable. The development of the modern evolutionary synthesis from the 1930s to the 1950s, incorporating natural selection with population genetics and Mendelian genetics, brought broad scientific consensus that natural selection was the basic mechanism of evolution. This synthesis set the frame of reference for modern debates and refinements of the theory.
James L Gould in other hands was an American ethologist, evolutionary biologist, and popular science writer. He has served as a professor of ecology and evolutionary biology at Princeton University since receiving his Ph.D in 1975.However, he is primarily known for the experiment he designed while an undergraduate at Caltech which proved that bees use complex dances to communicate thelocation of food. In addition to several technical works and textbooks, he co-wrote with his wife the popular science book The Honey Bee.
Gould went on to do work that further specialized in communication in Southern Right Whales. He also published studies that made serious contributions to the ethological understanding of animal navigation and sexual selection.
During his long lasting careerat Princeton, Gould has been dedicated to teaching as well as research. Notably, he has been teaching introductory biology and animal behavior courses for several decades. He has also taught field courses in marine biology. His dedication and enthusiasm for teaching have made his courses very popular
Dr. Niles Eldredges
g 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.
Niles Eldredge was an American paleontologist, who, along withStephen Jay Gould, proposed the theory of punctuated equilibrium in 1972.
Eldredge and Stephen Jay Gould proposed punctuated equilibrium in 1972. Punctuated equilibrium is a refinement to evolutionary theory. It describes patterns of descent takin
Eldredge is a critic of the gene-centric view of evolution and the notion that evolutionary theory can be held accountable to patterns of historical data.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,...