Daily alternative news articles at the News Desk for GrahamHancock.com. Featuring alternative history, science, archaeology, ancient egypt, paranormal & supernatural, environment, and much more. Check in daily for updates!
To sign up to the Graham Hancock newsletter mailing list, please click here.
October 23 2012
Silvery fish like sardines and Atlantic herring are masters of camouflage. A new study explains how the fish use their silvery skin to stay invisible to predators from nearly every angle.
“What these fish do is get around a fundamental law of reflection,” said Nicholas Roberts, a biologist at the University of Bristol and one of the study’s authors.
Typically, when light is reflected from different surfaces, any light that comes off the path of that reflection becomes polarized. That’s why fishermen wear polarized sunglasses. Silver fish avoid this problem because of the unique makeup of their skin, which has alternating layers of cytoplasm, as well as two types of guanine crystals (which refract light). The two types of crystals have different refractive indexes that create a unique reflective property.
[Follow article link...
Back to Previous...
Go to News Desk...
Enjoy the newsdesk? Please tell others about it:
Add Graham via his official Twitter, Google+ and facebook pages.
Dedicated Servers and Cloud Servers by Gigenet.
Invert Colour Scheme / Default