Because iguanas are large and easily observed, they are one of the more conspicuous examples of speciation on oceanic islands. To see a larger image, click here. Photo by Jeff Mitton. A ...

Together, these results indicate that the single genetic swap probably set speciation in motion, Uy said. "I think we do have a speciation gene because this substitution creates a different physical ...

This is a preview. Log in through your library . Abstract The notion that shifts to new hosts can initiate insect speciation is more than 150 years old, yet widespread conflation with paradigms of ...

A University of Arizona graduate student may be the first eyewitness to the birth of a new species. Her new findings, appearing in the June 7, 2004 Proceedings of the National Academy of Science, ...

A recent example of speciation: Hawthorn flies used hawthorn fruit for food before colonists came to America. Colonists brought apple trees. Apples ripen a few weeks later than hawthorns. Some ...

Apple flies have fascinated scientists right from the mid-19th century, as they are a captivating example of speciation, the beginning of a new species. Correspondence between Charles Darwin and ...

Evolutionary biologists have analyzed the role of microRNAs in the evolution of new species. The mechanisms by which new species arise are still not fully understood. What are the evolutionary ...

This is a preview. Log in through your library . Abstract The distribution of diversity can vary considerably from clade to clade. Attempts to understand these patterns often employ state-dependent ...