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What is polonium-210 and how can it kill?

LONDON (AP) — Polonium first hit the headlines when it was used to kill KGB agent-turned-Kremlin critic Alexander Litvinenko in London in 2006. This week, Yasser Arafat’s widow has called for the late Palestinian leader’s body to be exhumed after scientists in Switzerland found elevated traces of radioactive polonium-210 on …

BBC News – Dozens of Caravaggio sketches ‘discovered’

Two Italian art historians say they believe they have uncovered dozens of sketches and paintings attributable to the Renaissance master Caravaggio. The works are believed to date from Caravaggio’s time as a student in Milan, Italian media reports. They were previously ascribed to the archive of painter Simone Peterzano, with …

‘Asian unicorn’ at risk of extinction from poaching, WWF warns | Environment | guardian.co.uk

On the 20th anniversary of the saola’s discovery, conservationists say the population of the reclusive species has dropped dramatically Poaching in Vietnam and Laos may be driving the “Asian unicorn” to extinction, warns the WWF on the twentieth anniversary of its discovery. The saola is an antelope-like reclusive species that …

Watercooler Stories – April 30, 2012 – UPI.com

Dolphin refuses to leave Calif. wetland HUNTINGTON BEACH, Calif., April 30 (UPI) — A dolphin lingering in a dead-end wetland near Huntington Beach, Calif., refuses to head back into open water, an marine animal expert said Sunday. The dolphins behavior has befuddled Peter Wallerstein, program director for Southern California’s Marine …