Navigation Links
Shrimps see beyond the rainbow
Date:5/13/2008

lue sky with polarising sunglasses. But polarisation is more subtle than this: the electric field of the light can oscillate back and forth in a line or around and around in a circle, or anywhere in between.

The two scientists have shown that shrimp of the species Gonodactylus smithii have eyes that simultaneously measure four linear and two circular polarisations, enabling them to determine both the direction of the oscillation, as well as how polarised the light is.

This is very useful because natural light can vary from strongly polarised, like the glare off snow or water, to unpolarised, like the sun, Professor White said.

Any changes to the amount of polarisation instantly tells the animal that something is going on.

Colleagues at The University of Queensland have recently found a related species where the males reflect circular polarisation from their bodies, and hypothesized that circular polarisation vision is used for sexual signalling. Professor White smiles and says, I think of that as the 'prawnographic' hypothesis.

He continues, It can't be the whole story in our case, though. We found the same structures in the eyes of both boy and girl mantis shrimps, and yet neither have circularly polarised markings on their bodies. Each eye measures the six polarisation components that are precisely required for optimal polarisation vision. In fact, the physics we used to understand what was going on is the same physics that we use in quantum computing for optimal storage of information.

It is this unique talent to measure linear and circular polarisation simultaneously which presents a completely new concept of polarisation vision, Dr Kleinlogel continues. There wouldn't be much point in only being able to see circular polarisation as it is extremely rare in nature. Even the polarized light reflected from some shrimps bodies is only weakly circular polarised and often contains more linear polarisation.


'/>"/>
Contact: Dr. Sonja Kleinlogel
Sonja.Kleinlogel@mpibp-frankfurt.mpg.de
Public Library of Science
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Beyond batteries: Storing power in a sheet of paper
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... it comes to using marijuana, new research, involving mice ... Journal of Leukocyte Biology , suggests ... that you should. That,s because a team of Italian ... do serious long-term damage to the immune system. This ... diseases, such as multiple sclerosis, inflammatory bowel disease and ...
(Date:9/30/2014)... with IVF? Here,s some hope: A new research report ... FASEB Journal , explains how scientists developed a ... which induced embryo development in human and mouse eggs ... the sperm cell during fertilization. , "We believe that ... shift in our understanding of human fertilization by providing ...
(Date:9/30/2014)... perilous threats in today,s ocean. From overfishing and ... coral ecosystems are disappearing at unprecedented rates around ... corals surrounding the island of Moorea in French ... environment: coral guard-crabs. New research from the National ... Seabird McKeon and the museum,s predoctoral fellow Jenna ...
Breaking Biology News(10 mins):Adolescent exposure to thc may cause immune systems to go up in smoke 2Synthetic sperm protein raises the chance for successful in vitro fertilization 2Smithsonian scientists discover coral's best defender against an army of sea stars 2
... Scientists have recorded and identified one of the most ... ice as it melts into the sea. The noise, caused ... could provide clues to the rate of glacier melt and ... Geophysicist Erin Pettit, a researcher at the University of Alaska, ...
... international team of scientists, including researchers at Columbia University Medical ... malaria parasites require for survival at each stage of infection ... approach to combating malaria, one of the world,s deadliest diseases. ... the journal Nature . "Perhaps the most ...
... the Graduate School of Excellence "Materials Science in Mainz" ... Tonhauser. Anna Maria Hofmann received the prize for work ... honored for her thesis on functional polyethylene glycols. The ... prize money of EUR 2,000 and has been given ...
Cached Biology News:Glaciers sizzle as they disappear into warmer water 2Study finds new vulnerability in malaria parasite 2MAINZ award for Anna Maria Hofmann and Christine Tonhauser 2
(Date:9/30/2014)... Rainbow Scientific, Inc. (RSI), a ... opened an online store to add customer convenience ... developed and manufactured by Biological Industries, Inc. , ... Industries’ Nutristem® serum-free, xeno-free reagents for human mesenchymal ... (hESC) culture. , The online store also ...
(Date:9/30/2014)... Cambridge MA and Pittsburgh PA (PRWEB) September 30, ... of Clinical Research Nurses ( IACRN), a ... Alliance for Clinical Research Excellence and Safety ... announced the signing of a strategic alliance agreement, ... , IACRN’s vision is to enhance clinical research ...
(Date:9/29/2014)... , Sept. 29, 2014 Research ... "Oligonucleotide Synthesis Market by Product & Services, End-User , ... their offering. The global oligonucleotide synthesis ... from $1,070.7 million in 2014, growing at a CAGR ... synthesis market is categorized on the basis of products ...
(Date:9/29/2014)... 2014 According to ... Product (Modifying Enzymes, DNA Polymerase, Acetylase, Methyltransferase, ... Reagents), by Research Area (Developmental Biology, Oncology), ... 2019", published by MarketsandMarkets, provides a detailed ... current market trends, and strategies impacting the ...
Breaking Biology Technology:Rainbow Scientific, Inc. opens online store for state-of-the-art stem cell culture and cytogenetic reagents 2IACRN and ACRES to Support Clinical Research Nurses 2IACRN and ACRES to Support Clinical Research Nurses 3Oligonucleotide Synthesis (Diagnostics, PCR, QPCR, Gene Synthesis, NGS, DNA, RNAi) Market - Global Forecast to 2019 2Oligonucleotide Synthesis (Diagnostics, PCR, QPCR, Gene Synthesis, NGS, DNA, RNAi) Market - Global Forecast to 2019 3Epigenetics Market Worth $783.17 Million by 2019 2Epigenetics Market Worth $783.17 Million by 2019 3Epigenetics Market Worth $783.17 Million by 2019 4
... doubled Hectorol sales , Middleton, Wis. Bone ... the work of University of Wisconsin-Madison professor Hector DeLuca, reported ... said its sales of the drug Hectorol were $19.6 million, ... million, despite large theft , Neenah, Wis. ...
... Actor Michael J. Fox plans to visit the Waisman ... Jim Doyle and Fox will hold a media event ... for biotechnology research in Wisconsin. , ,In November, Doyle ... biotechnology and stem cell research, including a collective $750 ...
... wrote about the importance of transparency, which I described ... and maybe even personal perspectives" so that "intelligent consumers ... and write." , ,This transparency puts content in context, ... where the rules of reportorial journalism, more often than ...
Cached Biology Technology:Michael J. Fox coming to UW Waisman Center 2Corporations and blogging 2Corporations and blogging 3
Mouse monoclonal antibody raised against a partial recombinant ST3GAL2. NCBI Entrez Gene ID = ST3GAL2...
... Extraction Kit is manufactured for DNA purification ... byexposure to UV light. The Purification of ... used for DNA-cloning work. The conventional method ... exposure of UV light damages DNA and ...
CleanBox DNA workstation with two 254nm UV lambs & 12-hr timer, 90cm (36-inch)width, single door, 115V (w/crating)...
Mouse monoclonal antibody raised against a full length recombinant PPIL2. NCBI Entrez Gene ID = PPIL2...
Biology Products: