optical clues help flying birds
Last Updated : GMT 06:49:16
Arab Today, arab today
Arab Today, arab today
Last Updated : GMT 06:49:16
Arab Today, arab today

Optical clues help flying birds

Arab Today, arab today

Arab Today, arab today Optical clues help flying birds

Brisbane - UPI

Australian scientists say they've discovered how birds avoid collisions with objects and each other as they perform their aeronautic maneuvers. The graceful flight of birds, even in crowded environments, is a result of their perception of something called optic flow, Partha Bhagavatula of the University of Queensland said. "Our findings show, for the first time, that birds regulate their speed and negotiate narrow gaps safely by balancing the speeds of image motion, or optic flow, that are experienced by the two eyes," Bhagavatula said in a university release. In a study, researchers trained parakeets to fly through a 23-foot corridor lined with varying combinations of thick black horizontal and vertical stripes, and then filmed their flights. They found birds flew down the center of the corridor when optic flow cues were balanced -- with identical, vertical stripes on either side of the corridor -- but flew more closely to one wall or another when the cues were unbalanced, for example, when one wall was lined with horizontal stripes and the other with vertical stripes. Also, the birds flew faster when the tunnels were lined with horizontal, rather than vertical, strips, suggesting they were using optic flow cues to regulate their flight speed. While similar flight behaviors have been demonstrated in flying insects, this is the first time the use of optic-flow signals has been demonstrated in birds, the researchers said.  

arabstoday
arabstoday

Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

optical clues help flying birds optical clues help flying birds

 



Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

optical clues help flying birds optical clues help flying birds

 



GMT 11:36 2016 Wednesday ,28 December

UAE Banks Needs Unified Approach To Common Problems

GMT 09:00 2017 Wednesday ,12 April

Colombia forces struggle to root out coca

GMT 21:42 2017 Monday ,06 February

Syria anti-Daesh forces say US sent them armored cars

GMT 18:35 2017 Saturday ,11 November

750,000 march for separatists' release in Barcelona

GMT 21:18 2016 Thursday ,22 September

Nawaz, Rouhani discuss bilateral ties, regional situation

GMT 18:31 2017 Friday ,01 September

Vietnam state oil magnate arrested in major fraud case

GMT 14:18 2017 Thursday ,09 March

CITC governor visits STC booth in Spain exhibition

GMT 04:30 2017 Friday ,10 November

Uber IPO 'target' is 2019

GMT 19:40 2017 Tuesday ,29 August

Mona used stones to decorate ornaments

GMT 13:02 2017 Wednesday ,08 March

Crash test dummies sacrifice lives for car safety

GMT 08:41 2017 Tuesday ,28 November

Beautiful Plants for Amazing Indoor Decoration

GMT 05:01 2018 Monday ,24 September

Bahrain weather forecast
Arab Today, arab today
 
 Arab Today Facebook,arab today facebook  Arab Today Twitter,arab today twitter Arab Today Rss,arab today rss  Arab Today Youtube,arab today youtube  Arab Today Youtube,arab today youtube

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2021 ©

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2021 ©

arabstoday arabstoday arabstoday arabstoday
arabstoday arabstoday arabstoday
arabstoday
بناية النخيل - رأس النبع _ خلف السفارة الفرنسية _بيروت - لبنان
arabstoday, Arabstoday, Arabstoday