02.12.2021 - By CBC
Meet the Canadian engineer who will help guide NASA’s new rover on Mars; Butterfly males leave a stinky parting gift with mates that deters further suitors; Biologists can tell how some corals survive climate-related coral bleaching events; Quick decisions might not be easy ones as ‘choice overload’ leads to stress; Monkeys are 'naturally selecting' themselves for domestic cooperation and tranquility; Why don’t animals get sick from filthy, drying-up water holes in Africa?