Navigation Links
Baby sharks stay still to avoid being detected by predators
Date:1/9/2013

Baby sharks still developing in their egg cases can sense when predators are near, and keep very still to avoid being detected, according to research published January 9 in the open access journal PLOS ONE by Ryan Kempster from the University of Western Australia and colleagues.

Adult sharks are known to use highly sensitive receptors to detect electric fields emitted by potential prey. In the current study, researchers found that embryos of some shark species employ similar means to detect potential predators and escape being eaten.

The researchers found that, even within their egg cases, brown-banded bamboo shark embryos can sense electric fields that mimic a predator, and respond by reducing respiratory gill movements to avoid detection. According to the authors, their results suggest that even at these early stages, embryonic sharks can recognize dangers and instinctively try to avoid them.

Kempster adds, "Despite being confined to a very small space within an egg case where they are vulnerable to predators, embryonic sharks are able to recognise dangerous stimuli and react with an innate avoidance response. Knowledge of such behaviours may help us to develop effective shark repellents."


'/>"/>

Contact: Jyoti Madhusoodanan
jmadhusoodanan@plos.org
415-568-4545
Public Library of Science
Source:Eurekalert  

Page: 1

Related biology news :

1. Sharks: Bad creatures or bad image?
2. Public sightings suggest increase in basking sharks in British waters
3. Where we split from sharks: Common ancestor comes into focus
4. Cognitive deficits from concussions still present after 2 months
5. Was the sauropod dinosaurs large size due to plant food? Scientists argue old idea still has legs
6. Smallest and largest fetuses at greater risk of being stillborn, research finds
7. Majority of Americans doubt Congress and White House can avoid fiscal cliff
8. Wake Forest Baptist Offers Tips on How to Avoid and Relieve Campaign Season Stress
9. New iPad, iPhone app helps mariners avoid endangered right whales
10. Too dog tired to avoid danger
11. UCI-led study uncovers how Salmonella avoids the bodys immune response
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Baby sharks stay still to avoid being detected by predators
(Date:3/15/2016)... 15, 2016 --> ... Transparency Market Research "Digital Door Lock Systems Market - Global ... 2023," the global digital door lock systems market in terms ... and is forecast to grow at a CAGR of 31.8% ... and medium enterprises (MSMEs) across the world and high industrial ...
(Date:3/14/2016)... , March 14, 2016 NXTD ... growing mobile commerce market, announces the airing of a new ... starting the week of March 21 st .  The commercials ... including its popular Squawk on the Street show. --> ... on the growing mobile commerce market, announces the airing of ...
(Date:3/11/2016)... http://www.apimages.com ) - --> http://www.apimages.com ) - ... Images ( http://www.apimages.com ) - Germany . ... new refugee identity cards. DERMALOG will be unveiling this device, and ... Hanover next week.   --> Germany ... the new refugee identity cards. DERMALOG will be unveiling this device, ...
Breaking Biology News(10 mins):
(Date:4/28/2016)... 2016 Q BioMed Inc. ... CEO  was featured in an article he wrote ... Fear To Tread: http://www.lifescienceleader.com/doc/accelerators-enter-when-vcs-fear-to-tread-0001 ... is an essential business journal for life science ... to Big Pharmas. Their content is designed to ...
(Date:4/27/2016)... ... April 27, 2016 , ... Cambridge Semantics, the leading provider ... announced that it has been named to The Silicon Review’s “20 Fastest Growing Big ... markets, Cambridge Semantics serves the needs of end users facing some of the most ...
(Date:4/27/2016)... and RESEARCH TRIANGLE PARK, N.C. ... (NASDAQ: UTHR ) announced today that ... of United Therapeutics will provide an overview and update ... st Annual Health Care Conference. The ... at 10:00 a.m. Eastern Time, and can be accessed ...
(Date:4/27/2016)... ... ... Global Stem Cells Group CEO Benito Novas announced that Duncan ... affiliate Kimera Labs in Miami. , In 2004, Ross received his Ph.D. in Immunology ... disorders and the suppression of graft vs. host disease (GVHD) under UM Professor Robert ...
Breaking Biology Technology: