This month I find out about sea ducks who enjoy a rather sophisticated fast food diet of mussels. I discover that horses horse around with lots of different facial expressions. And in the scientific spark, I talk to Johan Nilsson from the university of Lund, who researches the physiology and evolutionary ecology of birds. Download the MP3What does this face say?!Quicklinks: EquiFACS: The Equine Facial Action Coding SystemElisabeth Varennes' research gate pageJohan Nilsson's research page
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