pigment
Image of the Day: Living Color
Image of the Day: Living Color
The Scientist Staff | Mar 8, 2018
Biodegradable pigments could be custom-grown by bacteria in the future, say researchers.  
Hungry Macrophages Keep Tattoos on Mice’s Skin
Hungry Macrophages Keep Tattoos on Mice’s Skin
Diana Kwon | Mar 7, 2018
A new study reveals that a constant stream of ink-gobbling immune cells helps hold tattoos in place.
Image of the day: Stylish Zebrafish
Image of the day: Stylish Zebrafish
The Scientist Staff | May 3, 2017
Zebrafish, Danio rerio, develop patterns of colorful stripes on their skin thanks to pigmented cells—dark melanophores, orange-gold xanthophores, and iridescent iridophores. 
Infographic: How the Zebrafish Got Its Stripes
Infographic: How the Zebrafish Got Its Stripes
Catherine Offord | Apr 30, 2017
Immune cells called macrophages shuttle cellular messages in the skin.
“Redhead” Gene Variant Boosts Melanoma Risk
“Redhead” Gene Variant Boosts Melanoma Risk
Tanya Lewis | Jul 12, 2016
People without red hair who possess the variant are also more likely to develop this form of skin cancer, researchers report.
Rethinking Pre-Agricultural Humans
Rethinking Pre-Agricultural Humans
Tracy Vence | Jan 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. 
Fish of Many Colors
Fish of Many Colors
Abby Olena | Jan 23, 2014
Researchers seek insight into the pigmentation patterns of guppies and zebrafish.
Detailing Color Vision
Detailing Color Vision
Ruth Williams | Dec 6, 2012
Scientists engineer a spectrum of artificial pigments to understand how animals see in color.
Ruffling Dinosaur Feathers
Cristina Luiggi | Sep 15, 2011
Dinosaur and early bird feathers trapped in amber around 80 million years ago provide unprecedented insight into the evolution of plumage.
Early Bird Plumage
Early Bird Plumage
Cristina Luiggi | Sep 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.