The discovery of a gene shared by two unrelated species of fish is the latest evidence ... a whole new functional gene by co-opting a SPIN element enzyme. Since the 2008 SPIN paper, thousands of other ...

Laurie Graham, a research associate at Queen's University, said when she and Peter Davies first proposed more than a decade ago that horizontal gene transfer had happened in fish, they had a hard ...

Of the 33,000 species of fish and the countless species yet to be discovered, all of them have vertical tail fins that undulate side-to-side. Despite their myriad shapes, sizes, and habitats, they all ...