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 ...

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 ...

Trees get most of the love, but diatoms, a group of photosynthetic microalgae, produce 20% of Earth's oxygen and are the foundation of aquatic food webs. The prevalence and diversity of diatoms have ...

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 ...

Biologists drove the divergence of different-sized feather lice from a single population. In four years, the evolved lice had trouble mating with each other -- a sign of speciation. A few years ago, ...

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 ...

Lake Tanganyika in Africa is a true hotspot of organismal diversity. Approximately 240 species of cichlid fishes have evolved in this lake in less than 10 million years. A research team has ...

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 ...

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 ...