主播大秀

After the disruptions at Wimbledon, Steven Rainey explores the act of protest, wondering whether the methods match the intentions.

We also learn about ancient mammals, as a new book by palaeontologist Steve Brusatte uncovers a world where the dinosaurs weren't the only creatures to roam the earth.

All that, plus the latest in the Sunday papers, and a look at what's happening in the world of sport.