Toxin found in sardines that clogged US marina

(AP) -- The millions of sardines that were found floating dead in a Southern California marina this week tested positive for a powerful neurotoxin, researchers said Friday.

Migrating birds can't control themselves

During the Spring and Fall migratory seasons, sparrows become significantly less capable of resisting temptation. Researchers writing in the open access journal BMC Neuroscience investigated impulse control and sleep in White-crowned ...

Biologists identify genes regulating sleeping and feeding

In the quest to better understand how the brain chooses between competing behaviors necessary for survival, scientists at the University of Massachusetts Medical School and New York University have isolated two genes in the ...

Dolphins maintain round-the-clock visual vigilance

Dolphins have a clever trick for overcoming sleep deprivation. Sam Ridgway from the US Navy Marine Mammal Program explains that they are able to send half of their brains to sleep while the other half remains conscious. What ...

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