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Canny Birds Remember Helpful Neighbors [SciScoop Science Blog] Posted: Cooperative behaviours are ubiquitous across the tree of life. Organisms from microbes to humans indulge in behaviours which benefit their neighbours at an apparent cost to themselves. There are numerous explanations of how cooperation can be maintained in the face of considerable incentives to defect and take advantage of the kindness of others. One of these, called reciprocity, relies on individuals following a strategy of tit-for-tat or "you scratch my back, I'll scratch yours." Surprisingly, it now seems that birds have the ability to play this seemingly complex game.

Robots replace animals in toxicology testing [Earth & Sky Podcast] Posted: 23 Jul 2008 04:07 AM CDT In the future, robots might replace animals in toxin tests. An NIH scientist spoke with EarthSky about a new method for toxicity testing that could one day make lab rats obsolete. This posting includes an audio/video/photo media file: Download Now

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