This week for our science feature, we're getting a bit anthropological.
Breakfast, lunch, and dinner: we take for granted the idea that we're supposed to eat three meals a day. But these habits are actually quite recent. Nights is going on a journey through human history to find out what our meal habits can tell us about life on earth.
Rob Richardson, the co-director of the Centre for Critical Food Studies, joins Maggie Tweedie.
Photo: shalamov/123RF