Dec. 20, 2017, 7:06 p.m.
Revealing What Lies Beneath
This false-color image demonstrates how use of special filters available on the Curiosity Mars rover's Mast Camera (Mastcam) can reveal the presence of certain minerals in target rocks.
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Researchers have shown for the first time in an experiment that also non-human animals exchange different kind of favors. Humans commonly trade different commodities, which is considered a core competence of our species. However, this capacity is not exclusively human as Norway rats exchange different commodities, too. They strictly follow the principle "tit for tat" -- even when paying with different currencies, such as grooming or food provisioning.https://www.sciencedaily.com/releases/2018/02/180201173109.htm
