A major evolutionary theory says most genetic changes don’t really matter, but new evidence suggests that’s not true. Researchers found that helpful mutations happen surprisingly often. The twist is ...

A study in fruit flies suggests an internal genomic arms race may be driving rapid evolution in proteins that still perform an essential, unchanging job: protecting chromosome ends.

Woodrats weigh less than half a pound but can survive venomous rattlesnake bites that would hospitalize, or even kill, a full ...

One of the biggest quests in biology is understanding how every cell in an animal's body carries an identical genome yet ...

Human evolution’s biggest mystery, which emerged 15 years ago from a 60,000-year-old pinkie finger bone, finally started to ...

About sixty percent of the genomes of human beings and bananas are similar. So does that mean we are bananas? Well, no - only in a figurative sense. The regulation of gene expression is essential to ...

Genetic sharing among evolutionary neighbors all happens through hybrids: the offspring produced when individuals from two species mate. Famous hybrids include offspring between polar and grizzly ...

For millennia, evolution has intrigued many great thinkers, prompting questions about how new traits emerge as species adapt over time. Then, attention shifted to natural selection and the inheritance ...

Tiny genetic variations between humans, Neanderthals and Denisovans might not be all they were cracked up to be.

Researchers find Apennine brown bears evolved into a smaller, less aggressive animal after centuries of coexistence with ...

Evolution of the mouse [Beta] globin complex locus / M.H. Edgell, S.C. Hardies, B. Brown, C. Voliva, A. Hill, S. Phillips, M. Comer, F. Burton, S. Weaver, and C.A ...