“The discovery of so many leaks in so many places over recent years suggests that there is a real problem with the safety culture across the whole nuclear navy.”

John Ainslie, coordinator of the Scottish Campaign for Nuclear Disarmament, comments on the latest news of nuclear leaks from British submarines (Guardian).

“Give them a few penguins and let that be an end to it.”

The original offer by Bernhard Blaskiewitz, the director of the Berlin zoo, over demands from Neumünster zoo for a share of the money generated by polar bear Knut. The zoos are now in a court fight (Guardian).

“Walker – who published his findings in Nature in 1981 – had to work with very incomplete skeletons, and his discoveries were not at the time seen as particularly significant. Today, however, they are recognised as among the most important in avian palaeontology.”

From the Daily Telegraph obituary of Cyril Walker, who died 6 May 6 aged 70.