The first days of spring sees Arctic fox pups take their first steps and black bear cubs learn to climb trees after the long cold days of winter.

Killer whales and blue sharks are on the hunt, while amorous fireflies light up the night forest with their dazzling display, as summer reveals Canada’s landscape at the peak of its splendour.

Fall chronicles a remarkable season of change: young northern gannets leap off perilous cliffs as chipmunks race to gather winter supplies, and prairie rattlesnakes give birth to live young.

Lynx hunt snowshoe hares in the boreal forest and the ancient dance between wolves and caribou on Canada's vast tundra reveal the harshest time of year when landscapes are transformed by winter.

The Great Pyramid of Egypt may be humanity’s greatest achievement. It’s a skyscraper of stone built without computers or complex machinery. Now the secrets of the pyramid could finally be exposed, thanks to a series of astonishing new findings. Egyptologists are unearthing evidence across the country to reveal a story that tells of more than just how Egypt built a pyramid – they are discovering how the pyramid itself changed Egypt and the world. David Suzuki is joining the experts and scientists on the front-line who are unraveling new clues to the world’s greatest ancient mystery.