For this year's Valentine's Day episode, we are getting up close and personal with those most beloved of birds - penguins. Giving us an insight into the love lives of our feathered friends are penguinologists (yes, that's a real word) Dr Ignacio Juarez Martinez and Dr Fiona Suttle, who have both graduated from Oxford's Department of Biology, and spent multiple field seasons in Antarctica monitoring penguin breeding behaviour. We hear how penguin breeding patterns appear to be shifting with changing temperatures, and how you can get involved in their research - just head to Penguin Watch to take part.