Stranded dolphins have amyloid plaques in their brains

Dolphins stranded on the beaches of Florida and Massachusetts show in their brains amyloid plaques, a hallmark in human beings of Alzheimer's disease, together with an environmental toxin produced by cyanobacterial blooms.

Cuddly polar bear cub makes splash in Berlin debut

Berlin's latest zoo celebrity, a fluffy polar bear cub, made her first tentative steps on the public stage Friday, with media hungry to anoint her the rightful successor to late lamented superstar Knut.

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