The 7th Avenue Project

Geoffrey Pullum, linguist and author of "The Cambridge Grammar of the English Language," discusses the grammar wars, common misconceptions about English and whether we really can talk to the animals.

Philosopher Alva Noë says consciousness isn't in the brain.

What it means to have a mom, what it means to be one and the unspoken truths of motherhood.

New films on Youssou N'Dour and Australian sprinter Peter Norman, who supported the raised fist protest at the 1968 Olympics. Interviewees include 1968 Olympic bronze medalist John Carlos

Mathematician Keith Devlin discusses his collaboration with choral group Zambra. Plus dancer/mathematician Karl Schaffer, and the most important math discovery you've never heard of.

Evolutionary biologist and parasite maven Marlene Zuk. Plus, parasite music with singer Daniel Kahn.

A 2008 interview with Ry Cooder, discussing his 'California Trilogy' and its latest installment, 'I, Flathead.'