Hermit crabs' lesson on wealth inequality

Can hermit crabs teach us about a common global problem—wealth inequality? The answer is yes, according to a first-of-its-kind study published in the January issue of Physica A.

Dark beer has more iron than pale beer

A team of researchers from the University of Valladolid (Spain) has analysed 40 brands of beer, discovering that dark beer has more free iron than pale and non-alcoholic beers. Iron is essential to the human diet, but also ...

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