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Greg Bluestein

Swimming with the whale sharks

It could be the setting for a <i>Jaws</i> movie: six snorkellers cruising just below the surface, until the mysterious whale shark appears.

US schools overhaul art of programming

The lesson plan is called ''Artificial Unintelligence'', but it is written more like a comic book than a syllabus for a serious computer-science class. ''Singing, dancing and drawing polygons may be nifty, but any self-respecting evil roboticist needs a few more tricks in the repertoire if they are going to take over the world,'' read the day's instructions.

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