Navigation Links
Bug Bites May Have Caused Zebras' Stripes
Date:2/9/2012

THURSDAY, Feb. 9 (HealthDay News) -- Zebras evolved from all black to striped in order to repel insects that distract them from feeding, a new study contends.

Researchers from Hungary and Sweden said that zebras' black and white stripes are the least-attractive hide pattern to disease-carrying bloodsuckers known as tabanids or more commonly, horseflies.

The researchers found that horseflies are drawn to horizontally polarized light resembling reflections from water. They explained that this is how insects find areas of water where they can lay their eggs. Female horseflies also use the light reflected from animals' hides, particularly black hides, to detect their victims, the study noted.

The study, published online in the March issue of the Journal of Experimental Biology, pointed out that as embryos, zebras start out with dark skin. They go on to develop their white stripes before birth. The researchers suggested this was an evolutionary adaptation to help them avoid bug bites.

The researchers tested their theory at a horse farm near Budapest that was infested with horse flies. They altered the width, angle and density of the stripes and changed the direction of polarization of the light they reflected. Using oil and glue, they trapped the insects to reveal which pattern attracted the most horse flies.

The study showed the narrower the stripes, the fewer flies they attracted. The researchers also tested the attractiveness of a white, dark and striped horse. The study found the striped horse drew the least flies.

"We conclude that zebras have evolved a coat pattern in which the stripes are narrow enough to ensure minimum attractiveness to tabanid flies," the researchers wrote in a journal news release.

More information

The University of Kentucky College of Agriculture provides more information on horseflies.

-- Mary Elizabeth Dallas

SOURCE: The Company of Biologists, news release, Feb. 4, 2012


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Health Bites: 8 Things You Didnt Know About Your Teeth
2. New and Delicious, Almond Butter Filled, Cookie Bites With 35.7% Protein to Help Manage Weight and Build Muscle
3. Sugar-Free, Gluten-Free Snack Bites are Perfect for Portion Control Snacking On the Go
4. Good News About Dog Bites and How to Make it Better
5. Rise in Dog Bites Has Experts Concerned
6. Treat Snakebites With Adrenaline, Study Says
7. How to Guard Against Dog Bites
8. Skin Lesions Often Misdiagnosed as Spider Bites
9. RSA Innovator NetClarity Solves Networking Problems Caused by HP and Cisco Divorce
10. Acupuncture may relieve joint pain caused by some breast cancer treatments
11. DNA Test May Cut Hospitalizations Caused by Blood Thinner
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Bug Bites May Have Caused Zebras' Stripes
(Date:10/13/2017)... ... October 13, 2017 , ... ... Randall, PharmD ‘17, and Jennifer Huggins, PharmD ’17, along with clinical associate ... primary prevention of cardiovascular diseases during the 15th Annual Women’s Health Conference. ...
(Date:10/13/2017)... , ... October 13, 2017 , ... The Visiting Nurse ... Market. Featuring a collection of specialty vendors and unique items from across the nation, ... quality-focused health and wellness services offered by the VNA. The boutique will be ...
(Date:10/13/2017)... ... October 13, 2017 , ... Talented host, ... lowdown on sciatica in a new episode of "Success Files," which is an ... and innovation and investigates each subject in-depth with passion and integrity. , Sciatica ...
(Date:10/12/2017)... ... October 12, 2017 , ... First Healthcare Compliance ... management, will showcase a range of technology and learning solutions at the 68th ... and Expo to be held October 14–18, 2017 at the Mandalay Bay Resort ...
(Date:10/12/2017)... ... October 12, 2017 , ... IsoComforter, Inc. ( https://isocomforter.com ... introduction of an innovative new design of the shoulder pad. The shoulder pad ... comfort while controlling your pain while using cold therapy. By utilizing ice and water ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... Oct. 2, 2017 The Rebound mobile app is ... to reverse the tide of prescription drug addiction. The app ... medicine intake and stepping down their dosage in a safe, ... in December 2017; the first 100,000 people to sign up ... http://www.rebound-solution.com/ ...
(Date:9/27/2017)... 27, 2017  Commended for their devotion to personalized service, ... as number one in the South Florida Business Journal,s 50 ... 5000 yearly list, the national specialty pharmacy has found its ... will soon be honored by SFBJ as the 2017 ... Set to receive his award in October, Bardisa said ...
(Date:9/25/2017)... PROVIDENCE, R.I. , Sept. 25, 2017 /PRNewswire/ ... immunogenicity assessment, vaccine design, and immune-engineering today announced ... focused on the development of personalized therapeutic cancer ... and has provided exclusive access to enabling technologies ... MSc Eng., MBA will lead EpiVax Oncology as ...
Breaking Medicine Technology: