It may not have the potential to re-order the world's economic system and tackle climate change like the UN climate talks currently under way in Barcelona, but I was very excited by the news that the soundtrack to Sir David Attenborough's natural history series Life on Earth was released this week. Listening to its dramatic orchestral sweep again took me immediately back to a TV programme that helped shape my interest in biology and conservation — as I suspect it did for many others. Another cracking story was the tale of the nuns of Stanbrook Abbey who have moved to a new eco-home. They invited the Guardian in for a sneak peek. And we also have news of the only species in which males truly become pregnant.