Nature snapshots

In this 15 March issue of Nature, a rather puzzling article on altruism that seemed to rely on the Hamilton rule:

linking fitness and number of offspring and benefits through kth-order moments. In a stochastic environment represented by distribution π. Hard to fathom what comes from data and what follows from this (hypothetical) model. Plus a proposal for geoengineering meltdown delays on some Greenland and Antarctica glaciers. Scary. And a film review of Iceman (Der Mann aus dem Eis), retracing Ötzi’s life in an archaeologically acceptable rendering. Including a reconstituted local language, Rhaetic.