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image: Rethinking Pre-Agricultural Humans

Rethinking Pre-Agricultural Humans

By | January 28, 2014

Analysis of a 7,000-year-old human genome suggests that Mesolithic people had relatively dark skin and had begun to evolve pathogen resistance characteristic of modern Europeans. 


image: Fish of Many Colors

Fish of Many Colors

By | January 23, 2014

Researchers seek insight into the pigmentation patterns of guppies and zebrafish.


image: Detailing Color Vision

Detailing Color Vision

By | December 6, 2012

Scientists engineer a spectrum of artificial pigments to understand how animals see in color.

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image: Ruffling Dinosaur Feathers

Ruffling Dinosaur Feathers

By | September 15, 2011

Dinosaur and early bird feathers trapped in amber around 80 million years ago provide unprecedented insight into the evolution of plumage.


image: Early Bird Plumage

Early Bird Plumage

By | September 15, 2011

After rummaging through thousands of amber inclusions housed at the University of Alberta and the Royal Tyrrell Museum of Paleontology in Canada, researchers discovered 11 amber encased-feather fossils that provide the most detailed picture yet of early feather evolution.


image: Repainting Ancient Birds

Repainting Ancient Birds

By | July 1, 2011

Using synchrotron rapid scanning X-ray fluorescence to map the distribution of trace metals in avian fossils over 120 million-year-old, researchers reconstruct the pigment patterns of their feathers—revealing some of the extinct birds' long-lost colors.


image: Color by Number Fossils

Color by Number Fossils

By | June 30, 2011

Researchers map pigments in early bird fossils using preserved metallic residues.


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