And some additional, much less happy news from Australia, as Unesco and environmentalists warn that climate change and large-scale coal mining may lead to the wholesale destruction of the Great Barrier Reef.

BBC: In brief: Unearthing Australia's secret history

An "artificial barrier" helps eaters decide when to stop, says Andrew Geier, lead author of the study published in Health Psychology.

WSJ: Overeating: The Psychology of Small Packages