Joni Mitchell's Blue turns 50, tick season is upon us, the case for the otter as Canada's symbol and more

Canadian musicians Terra Lightfoot, Zaki Ibrahim and Tami Neilson honour Joni Mitchell's celebrated album Blue by covering their favourite songs; why there are more ticks in more places than there used to be; Drew Hayden Taylor says it's time for Canada to replace the beaver with the otter as our national symbol; why author and historian Mark Bourrie says he's done writing about Canadian history; and more.

Hear full episodes of Day 6 on CBC Listen, our free audio streaming service.