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A Snapshot of Pupfish Evolution
January 10, 2013 — One biologist has bred more than 3,000 hybrid fish in his time as a graduate student in evolution and ecology, a pursuit that has helped him create one of the most comprehensive snapshots of natural ... > full story -
A History Lesson from Genes: Using DNA to Tell Us How Populations Change
January 9, 2013 — Researchers have developed a software model that can infer population history from modern ... > full story -
Low Extinction Rates Made California a Refuge for Diverse Plant Species
January 9, 2013 — The remarkable diversity of California's plant life is largely the result of low extinction rates over the past 45 million years, according to a new study. Although many new species have evolved in ... > full story -
Giant Fossil Predator Provides Insights Into the Rise of Modern Marine Ecosystem Structures
January 7, 2013 — An international team of scientists has described a fossil marine predator measuring 8.6 meters in length (about 28 feet) recovered from the Nevada desert in 2010 as representing the first top ... > full story -
First Fossil Bird With Teeth Specialized for Tough Diet
January 7, 2013 — Beak shape variation in Darwin's finches is a classic example of evolutionary adaptation, with beaks that vary widely in proportions and shape, reflecting a diversity of ecologies. While living birds ... > full story -
Dinosaur Shook Tail Feathers for Mating Show
January 4, 2013 — A researcher's examination of fossilized dinosaur tail bones has led to a breakthrough finding: some feathered dinosaurs used tail plumage to attract mates, much like modern-day peacocks and ... > full story -
Did Lucy Walk on the Ground or Stay in the Trees?
December 31, 2012 — Researchers have investigated tree-climbing behavior of modern hunter-gatherers to elucidate our fossil ancestors' terrestrial versus arboreal ... > full story -
Fluctuating Environment May Have Driven Human Evolution
December 26, 2012 — A series of rapid environmental changes in East Africa roughly 2 million years ago may be responsible for driving human evolution, according to researchers at Penn State and Rutgers ... > full story -
Paleo-Ocean Chemistry: New Data Challenge Old Views About Evolution of Early Life
December 23, 2012 — A research team has tested a hypothesis in paleo-ocean chemistry, and proved it false. Many researchers attribute the delayed diversification and proliferation of eukaryotes to very low levels of ... > full story -
Black Piranha, Megapiranha Have Most Powerful Bites of Fish Living or Extinct, Researcher Finds
December 20, 2012 — The black piranha and the extinct giant piranha, or megapiranha, have the most powerful bites of carnivorous fishes, living or extinct, once body size is taken into account, researchers find. Their ... > full story
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