Evolution

Researchers who observed viruses as they evolved to infect bacteria say they have confirmed the Red Queen Hypothesis, the idea that competing species drive molecular evolution through natural…

Life can be brutal for yeast in the wild. You don't know where your next meal is coming from or what form it's going to take. The key to being a successful yeast is to be metabolically agile, able to…

Writing in the Proceedings of The National Academy of Sciences, Harvard University researchers say they have demonstrated that simple changes in beak length and depth can explain the important…

Assorted creationists claim variously that creation theories are falsifiable and that evolutionary theories are not falsifiable. Here, I want to quickly point out a few flaws that I see in their…

A new study in PNAS of the side-blotched lizard (Uta stansburiana) may bolster the idea that 'morphs', morphologically distinct types often found within species, could be the raw material for…

Natural selection – the force that drives evolution – acts not only on whole organisms and individual genes, but also on gene networks, according to a new study appearing in Nature this week.The…

Biologists have struggled for many years to comprehend the relationships among the major groups of arthropods. Now, a team of researchers has completed new analysis of the evolutionary relationships…

Pegasus - A Load Of Horse Feathers? Evolution proceeds by producing variants of a life-form which may, or may not, thrive in their current environment.  An interesting question arises: "In an…

http://www.redorbit.com/news/science/15854/sparks_of_life_darwinism_and_... Advocates of Intelligent Design creationism like to play Stump the Scientist by asking evolutionary biologists "what would…

When administered in lethal levels, antibiotics trigger a fatal chain reaction within  bacteria that shreds the cell's DNA. But, when the level of antibiotic is less than lethal the same…