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The Panda's Thumb: More Reflections in Natural History (1980) is a collection of 31 essays by the Harvard University paleontologist Stephen Jay Gould.It is the second volume culled from his 27-year monthly column "This View of Life" in Natural History magazine.
[2] [3] In October 2004, the Dover Area School District of York County, Pennsylvania, changed its biology teaching curriculum to require that intelligent design be presented as an alternative to evolution theory, and that Of Pandas and People, a textbook advocating intelligent design, was to be used as a reference book. [4]
In a review of Daniel Dennett's book Darwin's Dangerous Idea, Maynard Smith wrote that Gould "is giving non-biologists a largely false picture of the state of evolutionary theory." [92] But Maynard Smith was not consistently negative, writing in a review of The Panda's Thumb that "Stephen Gould is the best writer of popular science now active ...
Convergent evolution—the repeated evolution of similar traits in multiple lineages which all ancestrally lack the trait—is rife in nature, as illustrated by the examples below. The ultimate cause of convergence is usually a similar evolutionary biome , as similar environments will select for similar traits in any species occupying the same ...
Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. Convergent evolution creates analogous structures that have similar form or function but were not present in the last common ancestor of those groups. The cladistic term for the same phenomenon is homoplasy.
The theory of recapitulation, also called the biogenetic law or embryological parallelism—often expressed using Ernst Haeckel's phrase "ontogeny recapitulates phylogeny"—is a historical hypothesis that the development of the embryo of an animal, from fertilization to gestation or hatching (), goes through stages resembling or representing successive adult stages in the evolution of the ...
Convergent evolution is the development of analogous structures that occurs in different species as a result of those two species facing similar environmental pressures and adapting in similar ways. It differs from divergent evolution as the species involved do not descend from a closely related common ancestor and the traits accumulated are ...
For the 1993 edition of Pandas, Behe wrote a chapter on blood clotting, presenting arguments which he later presented in very similar terms in a chapter in his 1996 book Darwin's Black Box. Behe later agreed that they were essentially the same when he defended intelligent design at the Dover trial. [16] [17]