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Echolocation took whales to the depths

Posted on 11 Aug 2007 in Evolution, Journalism, Life, Palaeontology

Toothed whales may owe their deep-dive ability to the power of echolocation. Early whales preyed on nautiluses and squid, which rose to the surface waters only under cover of darkness. To take advantage of this midnight feast, the ancestors of today’s sperm whales evolved to find their prey by echolocation. Image: kohane

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For trilobites, variety really was the spice of life

Posted on 8 Aug 2007 in Earth Science, Evolution, Journalism, Life, Palaeontology

It may be possible to predict winners and losers ahead of a mass extinction – those species with the greatest variability in their appearance should be most likely to survive. Image: dctim1

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Plant invaders enjoy life in the fast lane

Posted on 4 Aug 2007 in Environment, Journalism

New Scientist Image: Mountain Vision Motorists are not the only ones to...

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Earth’s crust stretches just like pizza dough

Posted on 28 Jul 2007 in Earth Science, Journalism

You know how if you stretch pizza dough sometimes it will break right away and sometimes it will stretch and stretch? That, it turns out, is how the Gulf of California was formed. Image: VancityAllie

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Spite is a uniquely human emotion

Posted on 16 Jul 2007 in Animal Behaviour, Evolution, Journalism

It used to be easy to separate man from beast. Then we realised animals, too, can experience sophisticated emotions and communicate through language. But there is one thing that is beyond even our closest relatives, chimpanzees – and that is the ability to be spiteful. Image: fwooper

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Amazon dam project gets go-ahead

Posted on 14 Jul 2007 in Environment, Journalism

New Scientist Image: Nao Iizuka When a country’s environment agency...

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