Lyme disease, a mysterious tick-borne illness, has become one of the fastest-spreading diseases in North America. Tiny, dangerous and once uncommon, the population of ticks is growing at an alarming rate.
David Suzuki explores breakthroughs in understanding Alzheimer's disease. Suzuki's interest is personal because his mother, aunt and two uncles died of it.
Gay filmmaker Bryce Sage has had a big question on his mind ever since he came out of the closet - how is evolution compatible with the existence of gay men?
A chronicle of the annual Monarch butterfly migration includes a profile of a Canadian scientist who's spent 40 years trying to discover exactly where the creatures mysteriously disappeared each winter.
Scientists are attacking food allergies in new and inventive ways, driven by the alarming increase in the number of people, particularly children, who suffer from them - and can die from them.
From the prairies to Canada's vast boreal forest that stretches almost from coast to coast, we reveal a huge wilderness of extremes that has been shaped over millennia by both humans and wildfires.
From polar bear cubs making their first discovery of ice to a caribou calf 'dancing' in the chilly spring air to eider ducks diving under the ice to find mussels, we witness the extremes and wonders of life in the far north.
