Arctic winds plunge the polar bear into a deep freeze, while in Australia, the heat means a feast for one bird prey.

Travel around the globe to witness the atmospheric shifts that take place in March, from the wave of cherry blossoms that unfold across Japan to the final raft of green sea turtles that arrive on the Great Barrier Reef islands to lay eggs.

May brings violent tornados to North America and the life-giving monsoon to India; the dry season ends in southern Africa, claiming victims among elephants.

In July, Arctic ice sheets crash into the sea while an arctic fox hunts among the rocks. In Africa, herds wildebeest cross the croc-infested Mara river.

In September, seasonal swings activate change across the natural world.

A visually stunning journey of the natural world's most awe-inspiring seasonal events including migration, rebirth and transformation.