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 MP3

What does this face say?!

Quicklinks:

EquiFACS: The Equine Facial Action Coding System

Elisabeth Varennes' research gate page

Johan Nilsson's research page