HOME >> BIOLOGY >> NEWS
Archerfish tune their shots to universal properties of prey adhesion

Archerfish exhibit the remarkable ability to hunt for insects and other small terrestrial animals by firing precisely aimed streams of water that knock prey onto the water's surface. These water shots were once thought to be all-or-none in quality, but researchers have now discovered new levels of sophistication in the archerfish's hunting strategy that shed light on how this impressive predatory behavior has evolved. The findings are reported by Thomas Schlegel, Christine Schmid, and Stefan Schuster of the Universitt Erlangen-Nrnberg in Erlangen, Germany, and appear in the October 10th issue of the journal Current Biology, published by Cell Press.

By employing high-resolution imaging of water streams fired during archerfish hunting, researchers have discovered that archerfish automatically tune the force they use to dislodge prey according to prey size, and that this strategy appears to be resistant to alteration by experience: It occurs even when the fish have been placed for two years in an environment that has been manipulated to make such tuning unnecessary for successful hunting. The findings suggest that the tuning aspect of the archerfish's hunting strategy is not as plastic in response to learning as might have been thought. Instead, the strategy may reflect the evolution of archerfish behavior in accordance with a recently discovered scaling law: Among animals such as flies and lizards, an animal's adhesive force--its natural tendency to stick to a surface--is closely proportional to the animal's size.

The researchers showed that for any given size of prey, the archerfish tune their attacks such that prey are hit with about ten times the force that adhesive organs of animals of that size could sustain.

The new work also revealed that the archerfish's hunting technique is metabolically costly and that the fish tune the force of their water shots by adjusting the mass of water in a shot, rather than altering the initial re
'"/>

Contact: Heidi Hardman
hhardman@cell.com
617-397-2879
Cell Press
9-Oct-2006


Page: 1 2

Related biology news :

1. ESF EURYI award winner aims to stop cancer cells reading their own DNA
2. How cells change the pace of their steps
3. Unlocking proteins from their cellular shell
4. Cells take risks with their identities
5. Birds take cues from their competitors
6. St. Jude study shows genes play an unexpected role in their own activation
7. Pre-cancerous blood diseases can be products of their environment
8. Plants recognize their siblings, biologists discover
9. Daddies girls choose men just like their fathers
10. Study shows lizard moms dress their children for success
11. New research shows sharks use their noses and bodies to locate smells

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/5/2020)... ... June 04, 2020 , ... Murrieta Genomics has announced that its ... simplified sample preparation for Next Generation Genomic Sequencing (NGS) . This is the ... complexity of sample preparation. , “I have been at the bench for over 20 ...
(Date:6/5/2020)... ... 04, 2020 , ... Greffex, a pioneering vaccine and gene therapy company based ... understands the need for a global perspective to make an impact in a post ... will serve as an independent, director of the company. , “The Greffex board is ...
(Date:5/30/2020)... Calif. (PRWEB) , ... May 29, 2020 , ... ... enabler of digital transformation for enterprises globally, has collaborated with EchoNous Inc. to ... FDA. It can measure systolic heart function, which has been clinically tested ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... (PRWEB) , ... July 30, ... ... of cloud-based software for the life sciences industry, today announced the release ... platform designed specifically for Medical Science Liaisons (MSLs) and other field medical ...
(Date:7/18/2020)... ... July 17, 2020 , ... dicentra ... life sciences and food industries, is pleased to announce that Charles Galea has ... Business Development. , Charles is an accomplished and results-driven sales executive with over ...
(Date:7/7/2020)... ... July 06, 2020 , ... R3 International is now ... up to 200 million stem cells. Depending on the patient's condition, treatment may be ... US will die having some form of Alzheimers dementia, and the incidence continues to ...
(Date:6/28/2020)... ... June 25, 2020 , ... The Indoor Lab, a ... Safe Space™ for businesses of all types to ensure cleanliness, distancing and occupancy with ... , A Safe Space™ enabled business will provide a health performance index system that ...
Breaking Biology Technology:
Cached News: