Fishy parents distinguish friend from foe

With intruders lurking everywhere, the volcanic crater lakes of Nicaragua can be a dangerous place to raise a family, especially if you're a fish.

Railroad official asks digital map makers to mark crossings

The federal agency that oversees railroads has asked digital mapping companies to alert drivers as they approach track crossings in the hope that visual and audio cues will lead to greater awareness of potential dangers.

Shopping center design to deter shoplifters

Specially designed shopping centres geared at encouraging shoplifters to think twice before they commit a crime are the way forward, according to researchers at Lancaster University.

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