Topic: Harold Zakon

Researchers Reveal How Electric Fish Evolved Their Shocking Skills Independently at Six Different Times

June 26, 2014

[caption id="attachment_46693" align="alignright" width="300" caption="New research demonstrates that the six electric fish lineages, all of which evolved independently, used "genetic toolbox" to make an electricity-generating organ for defense, predation, navigation and communication. This photo of an electric eel is by Steven Johnson."]Electric Eel[/caption]

AUSTIN, Texas  New research demonstrates that the six electric fish lineages, all of which evolved independently, used essentially the same genes and developmental and cellular pathways to make an electricity-generating organ for defense, predation, navigation and communication.

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Grasshopper Mice Are Numb to the Pain of the Bark Scorpion Sting

Oct. 24, 2013

The painful, potentially deadly stings of bark scorpions are nothing more than a slight nuisance to grasshopper mice, which voraciously kill and consume their prey with ease. When stung, the mice briefly lick their paws and move in again for the kill.

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Sodium Channels Evolved Before Animals' Nervous Systems, Research Shows

May 17, 2011

An essential component of animal nervous systems -- sodium channels -- evolved prior to the evolution of those systems, researchers from The University of Texas at Austin have discovered.

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Electric Fish Plug In to Communicate

Sept. 29, 2009

Just as people plug in to computers, smart phones and electric outlets to communicate, electric fish communicate by quickly plugging special channels into their cells to generate electrical impulses, University of Texas at Austin researchers have discovered.

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