Colors in nature are not always produced by pigments. Pearls, bird feathers, butterfly wings and opals display brilliant colors through the interaction of light with microscopic structures, a phenomenon known as structural color.
Colors in nature are not always produced by pigments. Pearls, bird feathers, butterfly wings and opals display brilliant colors through the interaction of light with microscopic structures, a phenomenon known as structural color.
Source: Phys.org
Tropical ecosystems are famous for their teeming, exuberant diversity. In fact, the dramatic increase in biodiversity from the poles to the tropics—known as the latitudinal diversity gradient—is pervasive across branches of the tree of life, and fossil evidence suggests it has existed for millennia.
Private retirement savings are an increasingly important topic in public debate. One popular idea is to phrase savings reminders in one of two ways: either you emphasize what someone stands to lose if they don't save, or you emphasize what they stand to gain if they do. To date, research into which of the two reminder messages is more effective in terms of influencing people's efforts to save has produced conflicting results.
Armed with dozens of motion-sensing cameras, William Grooms spent this past summer documenting wildlife across Carson National Forest in northern New Mexico. It was his first field season collecting photos for a two-year study to understand how forest structure influences biodiversity in the Southern Rocky Mountains.
