This week Chris gives us the lowdown Genetically Engineered Crops; Experiences and Prospects, also known as the National Academy of Sciences recently released 400 page report assessing the safety of genetically modified foods. If this leaves you hungry for more the report is available for download here.

And speaking of hungry, if you have a Labrador or Retreiver that's always famished, you are not alone. Hear about the latest research suggesting a genetic reason why these breeds just can't stop eating, and how this relates to why they make great guide dogs.

And finally, our occasional segment In Our Element spotlights a metal often mistaken for Magnesium. This amazing metal is in the top 5 most utilised metals in the world but you probably know nothing about it.