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New Theory Emerges for Where Some Fish Became Four-Limbed Creatures
December 27, 2011 — A small fish crawling on stumpy limbs from a shrinking desert pond is an icon of can-do spirit, emblematic of a leading theory for the evolutionary transition between fish and amphibians. This ... > full story -
Genetic Study of Black Chickens Shed Light on Mechanisms Causing Rapid Evolution in Domestic Animals
December 22, 2011 — The genetic changes underlying the evolution of new species are still poorly understood. For instance, we know little about critical changes that have happened during human evolution. Genetic studies ... > full story -
Cultural Diversification Also Drives Human Evolution
December 22, 2011 — Changes in social structure and cultural practices can also contribute to human evolution, according to a new ... > full story -
'Head-First' Diversity Shown to Drive Vertebrate Evolution
December 21, 2011 — A new analysis of two adaptive radiations in the fossil record found that these diversifications proceeded "head first." Head features diversified before body shapes and types. This suggests that ... > full story -
Human Skull Is Highly Integrated: Study Sheds New Light on Evolutionary Changes
December 20, 2011 — Scientists studying a unique collection of human skulls have shown that changes to the skull shape thought to have occurred independently through separate evolutionary events may have actually ... > full storyMore: -
Chinese Scientists Announce the First Complete Sequencing of Mongolian Genome
December 19, 2011 — Chinese scientists have announced the first complete sequencing of Mongolian ... > full story -
Close Family Ties Keep Cheaters in Check: Why Almost All Multicellular Organisms Begin Life as a Single Cell
December 15, 2011 — Any multicellular animal poses a special difficulty for the theory of evolution. Most of its cells will die without reproducing, and only a privileged few will pass their genes. Given the incentive ... > full storyMore: -
Shape, Fit of Reproductive Organs Evolve Quickly and in Concert, Leaving Size Behind
December 15, 2011 — Believed critical for determining which individuals can -- or cannot -- successfully reproduce with each other, genitalia not only figure prominently in the origin of new species, but are also ... > full story -
Scientists Discover Second-Oldest Gene Mutation
December 15, 2011 — A new study has identified a gene mutation that researchers estimate dates back to 11,600 B.C., making it the second oldest human disease mutation known. The mutation was described in people of ... > full story -
Follow Your Nose: Compared to Neanderthals, Modern Humans Have a Better Sense of Smell
December 14, 2011 — High-tech medical imaging techniques were recently used to access internal structures of fossil human skulls. Researchers used sophisticated 3-D methods to quantify the shape of the basal brain as ... > full story -
Birds Caught in the Act of Becoming a New Species
December 8, 2011 — A study of South American songbirds has shown that these birds differ dramatically in color and song yet show very little genetic differences, indicating they are on the road to becoming a new ... > full story -
Why Aren't We Smarter Already? Evolutionary Limits on Cognition
December 7, 2011 — We put a lot of energy into improving our memory, intelligence, and attention. There are even drugs that make us sharper, such as Ritalin and caffeine. But maybe smarter isn't really all that better. ... > full storyMore:
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