Observe the sinuous sensuality of mating brook lampreys (Lampetra planeri).
By Bob Grant | July 1, 2014
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By Bob Grant
The genitalia of mammals and reptiles develop from two different tissues, but the structures share common genetic programs and molecular induction signals.
By The Scientist Staff
November 2014's selection of notable quotes
By Sandhya Sekar
Fossils of an extinct, armored fish challenge current understanding of when copulation and internal fertilization evolved in jawed vertebrates.
View the November 2014 contents.
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