Schooling fish: Wild zebrafish assess risk through social learning

kristy Nature/Biomimicry

ScienceDaily: Top Environment News

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Schooling fish: Wild zebrafish assess risk through social learning
Oxygen ‘sensor’ may shut down DNA transcription

Schooling fish: Wild zebrafish assess risk through social learning

Posted: 19 Jun 2012 07:38 AM PDT

Scientists have investigated whether zebrafish use social learning to assess risk. They found that wild zebrafish, which are more timid than their domesticated counterparts, became emboldened after interacting with domesticated zebrafish. The opposite did not occur, however.

Oxygen ‘sensor’ may shut down DNA transcription

Posted: 19 Jun 2012 06:29 AM PDT

A key component found in an ancient anaerobic microorganism may serve as a sensor to detect potentially fatal oxygen, researchers have found. This helps researchers learn more about the function of these components, called iron-sulfur clusters, which occur in different parts of cells in all living creatures.