With the help of directed evolution, scientists inch closer to developing viral vectors that can cross the human blood-brain barrier to deliver gene therapy.

Interactions between mitochondrial and nuclear genomes have further-reaching effects on physiological function, adaptation, and speciation than previously appreciated.

The genome sequences of 51 giraffes from all over Africa contribute to the latest attempt in an ongoing pursuit to pin down a species number.

A more complete understanding of nonrandom segregation will shed light on how speciation occurs.

Mechanisms of Speciation New examples of sympatric speciation revive some nagging questions | By Leslie Pray "A new species develops if a population which has become geographically isolated from its parental species acquires during this period of isolation characters which promote or guarantee reproductive isolation when the external barriers break down." --Ernst Mayr, Systematics and the Origin of Species, 19421 The duration of a cell cycle lasts anywhere from one hour to one day; Droso

Evolutionary biologists, both theoreticians and empiricists, have argued for decades about the relative merits of two speciation scenarios: allopatry and sympatry.

Evidence is mounting that epigenetic marks on DNA can influence future generations in a variety of ways. But how such phenomena might affect large-scale evolutionary processes is hotly debated.

By Leonid Moroz The Devolution of Evolution Why evolution and biosystematics courses must be included in all biomedical curricula. Nearly 40 years ago Theodosius Dobzhansky wrote: “Nothing in biology makes sense except in the light of evolution.” How is it, then, that so few newly minted PhDs in the biological sciences have taken any formal graduate school courses in evolution or biodiversity? This fosters a knowledge gap that can become difficult t

A guide to DNA-encoded libraries for drug discovery

Comparing gene transcripts from different species reveals surprising splicing diversity.