color
The Rise of Color
The Rise of Color
Jef Akst | Jul 1, 2014
An analysis of modern birds reveals that carotenoid-based plumage coloring arose several times throughout their evolutionary history, dating as far back as 66 million years ago.
Shrimp Sight
Shrimp Sight
Jef Akst | Jan 24, 2014
Although mantis shrimp eyes have twelve different photoreceptors, the crustaceans have a hard time distinguishing colors, according to a new study.
Petunia pH
Petunia pH
Abby Olena | Jan 5, 2014
A mutation in a gene that helps regulate the acidity of vacuoles gives blue petunias their signature color.
Book Excerpt from <em>Cosmic Apprentice</em>
Book Excerpt from Cosmic Apprentice
Dorion Sagan | Aug 1, 2013
In Chapter 9, “Life Gave Earth the Blues,” author Dorion Sagan addresses the planet’s exuberant color palette, evoking the contribution of industrious microbes.
Dinosaursā€™ Shiny Black Feathers
Cristina Luiggi | Mar 9, 2012
A 130 million-year-old winged dinosaur offers scientist the oldest evidence of iridescent feathers.
How the Zebra Got Its Stripes
Jef Akst | Feb 9, 2012
Zebras may have evolved their striped coat to avoid blood-sucking flies.