![Naked Scientists Special Editions show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/034/511/small/naked-scientists-special-editions.png)
Summary: With as much as 30% of all species potentially at risk of extinction, there is a 'Noah's ark' problem of selecting which species to save. This week the Royal Society held a meeting to discuss extinction risks and the best strategies to prioritise conservation.