While iron and calcium are the metals that get the most attention, zinc is also important for human health and function.

EL PAÍS visits the hermetic Chinese rocket launch base in the Gobi desert as the race to put people back on the Moon ramps up ...

Opossums "play dead" when scared. They fall limp, smell bad, and stay still to avoid being eaten. Rabbits sometimes "fake death" by going still when caught, hoping predators will lose interest.