Finding Argoland: How a lost continent resurfaced

Geologists have long known that around 155 million years ago, a 5,000 km long piece of continent broke off western Australia and drifted away. They can see that by the 'void' it left behind: a basin hidden deep below the ...

Gray wolf personality research uses puzzle boxes, rain sticks

Researchers using puzzle boxes, rain sticks and papier-mâché balls are studying captive gray wolves at the Oakland Zoo and the California Wolf Center to evaluate personality and problem-solving skills of the endangered ...

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