Navigation Links
How can a colorblind animal change its colors to blend into the background?
Date:5/16/2011

U.S. MILITARY ACADEMY, WEST POINT, N.Y.How could a colorblind animal know how to change its skin color to blend into its surroundings? And what will the animal's predator "see," looking at its prey before and after it hides?

These provocative questions are addressed in article published today by a collaborative team from the Marine Biological Laboratory (MBL) in Woods Hole, Mass., and the U.S. Military Academy in West Point, N.Y. The article, "Hyperspectral imaging of cuttlefish camouflage indicates good color match in the eyes of fish predators," appears in Proceedings of the National Academy of Sciences (PNAS).

"What makes camouflage effective? The answer is that it's an opinion, and that opinion completely depends on who is being asked. Our work presented in this paper takes the field a step closer to quantifying camouflage effectiveness," says J. Kenneth Wickiser, Asst. Prof. in the Department of Chemistry and Life Science at the U.S. Military Academy in West Point.

Understanding the principles of camouflage is not only important in biology, but also provides insights into architecture, advertisement, and defense applications.

For this study, the team studied camouflage in the marine animals known as coleoid cephalopods (octopus, squid, and cuttlefish). Camouflage is the primary defense in these animals and their rapidly adaptable body patterning system is among the most sophisticated in the animal kingdom. The expression of camouflage body patterns in cuttlefish is a visually driven behavior. Previous studies have shown that certain background variablessuch as brightness, contrast, edge and size of objects, etc.are essential for eliciting camouflaged body patterns. However, cephalopod eyes lack color perception, thus the vexing question of how they achieve effective camouflage while being colorblind still remains.

Moreover, camouflage studies suffer from the inability to assess the effectivenes
'/>"/>

Contact: Jim Fox
jim.fox@usma.edu
845-938-2006
Marine Biological Laboratory
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Scientists discover animal-like urea cycle in tiny diatoms in the ocean
2. Smithsonian scientists report changes in vegetation determine how animals migrate
3. Wild animals age too
4. Can one model the social deficits of autism and schizophrenia in animals?
5. Animals have personalities, too
6. Research outlines mysterious evolution of nematodes -- one of Earth’s first animals
7. MU researchers pioneer animal diabetes treatment
8. The ultimate camo: Team to mimic camouflage skill of marine animals in high-tech materials
9. Studies of marine animals aim to help prevent rejection of transplanted organs
10. When African animals hit the hay
11. Bones of long-dead animals conjure ghosts at Yellowstone
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
How can a colorblind animal change its colors to blend into the background? 
(Date:4/17/2014)... modeling study suggests that fish consumption advisories for ... to long-lived contaminants like persistent organic pollutants (POPs). ... of researchers including University of Toronto Scarborough PhD ... at how different levels of environmental contamination, a ... chemicals in the body influenced exposure in her ...
(Date:4/17/2014)... in German . ... they also provide us with a continuous stream of information ... or sit still in a car the world glides ... retinas. Seemingly without effort, our brain calculates self-motion from this ... and a steady gaze during our own movements. Together with ...
(Date:4/17/2014)... professor Rajendra Singh Thursday as a "Champion of ... solar deployment in the residential, commercial and industrial ... of Electrical and Computer Engineering and director of ... local hero leading the charge across the country ... power and driving policy changes at the local ...
Breaking Biology News(10 mins):Fish consumption advisories fail to cover all types of contaminants 2How vision makes sure that little fish do not get carried away 2How vision makes sure that little fish do not get carried away 3How vision makes sure that little fish do not get carried away 4White House honors Clemson professor as 'Champion of Change' for solar deployment 2
... applauds the US Court of Appeals for the District of ... against the use of public funds for embryonic stem cell ... cell research and the nation,s scientific community. Most importantly, ... suffering from incurable diseases," says Susan L. Solomon, CEO of ...
... a groundbreaking new videojournal to complement the ... & Advanced Surgical Techniques has been ... ( http://www.liebertpub.com ). Videoscopy ( http://www.liebertpub.com/products/product.aspx?pid=390 ) ... of the latest techniques and technologies used ...
... ground to plant trees may be an excellent gateway to ... University of Maryland study, based on work with New York ... in environmental stewardship, the more s/he engages with other types ... Together ", which the researchers released to coincide with Arbor ...
Cached Biology News:Groundbreaking minimally invasive surgical videojournal launched by Mary Ann Liebert Inc. 2Digging in dirt, Arbor Day planting, may help build citizenship: UMD study 2
(Date:1/15/2014)... The Pittcon Organizing Committee is pleased to ... Tech , an e-Journal and producer of Food ... second year for the co-location of Food Labs Conference to ... that the registration fee to attend the two-day Food Lab ...
(Date:1/15/2014)... 15, 2014 Look inside the new ... for the lab, from fluid handling to instruments to ... ship when you order. , Preferred Solutions features ... from the L/S® model for precise flow control and ...
(Date:1/15/2014)... and SAN JOSE, California , ... biotechnology company developing antibody-drug conjugates for cancer, today announced the ... of Directors. Dr Reynolds has over 20 years, development experience ... Officer at Seattle Genetics. "I am delighted to ...
(Date:1/15/2014)... This webinar will focus on EMA and ... in biosimilars. , Regulatory frameworks are evolving many countries ... the complex nature of biopharmaceuticals makes the demonstration of ... challenging. Based on the specific aspects of biosimilar drug ...
Breaking Biology Technology:Pittcon Announces Second Year Partnership With Food Safety Tech 2Pittcon Announces Second Year Partnership With Food Safety Tech 3Cole-Parmer Begins 2014 with the Release of Preferred Solutions 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 3Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2
... Mylan Inc. (Nasdaq: MYL ) today ... company,s credit ratings, including the "Corporate Family Rating," to ... is stable.  According to Moody,s: "Mylan,s ... in the global generic pharmaceutical industry, its strong geographic ...
... a molecular diagnostics company, announced today the publication of ... which may influence the amount of fetal DNA found ... Kypros Nicolaides, MD, of Harris Birthright Research Centre for ... Kingdom. (Logo: http://photos.prnewswire.com/prnh/20120326/NY75864LOGO ) ...
... a metal surface at the scale of atoms and ... computer chips or the reflective silver in optical components ... may seem high-tech and precise, the technique has been ... physics. In a new study, Brown University engineers modeled ...
Cached Biology Technology:Moody's Upgrades Mylan 2Ariosa Diagnostics Announces Publication of Study on Influential Factors Affecting Fetal DNA Concentration in Blood of Pregnant Women 2How ion bombardment reshapes metal surfaces 2How ion bombardment reshapes metal surfaces 3
... Alsevers solution is an isotonic, balanced salt ... preservative, which permits the storage of whole blood ... usage, an equal volume of blood is collected ... but thoroughly, mixed. The solution is placed in ...
... OligoMix or individual RNA sequences from high throughput ... small RNAs from LC Sciences. These products provide ... millions) of DESIGNED sequences delivered in a microtube ... containing a single verified RNA sequence. This is ...
... GCMS-QP2010s Gas Chromatograph/Mass Spectrometer, utilizing many ... GCMS-QP2010 Plus, offers high throughput and ... excellent performance-to-cost ratio. Like the GCMS-QP2010 ... linear velocity for optimum separation, 20 ...
... Assay Kit contains all reagents necessary to ... lineage, as determined by staining for mineralization. ... necessary reagents and a protocol for quantifying ... product is useful for studying the effects ...
Biology Products: