Quirks and Quarks is Canadian public radio's science programme, and is probably one of the best English language science radio shows. The shows covers a wide range of topics with space and nature being among the most popular. The majority of shows consist of ten minute interviews with the scientists themselves. Often these will be projects that are currently in the news, and the website provides excellent links not only to CBC articles and official press releases, but often to the paper that has been published.
The presenter Bob Macdonald is excellent, he does not patronise the audience and is an intelligent interviewer who comes across as genuinely interested in the people he interviews, and doesn't just act the 'everyman journalist talking with those crazy egg head science people' which can happen in some science journalism.
Here is an extract from a January show
"It's perhaps not surprising that humans are having an impact on the evolution of other animals on the planet. What is surprising, according to Dr. Chris Darimont, an NSERC postdoctoral fellow in the Department of Environmental Studies at the University of California, Santa Cruz, is the way we're doing it."
listen to the whole segment here