The Equator is not only the line that divides the Earth, it is also the evolutionary powerhouse of the world. See its effect on the Galapagos.
See how the towering rainforests of the Amazon rely on the equatorial sun and rains - fuelling an environment that is like nowhere else.
The rainforests of South East Asia are a battleground, where the globe's greatest diversity of species fight for light, food and life.
The Indonesian archipelago has thousands of islands, atolls and the largest concentration of coral reefs in the world. How was it created?
In the high Andes of Ecuador, every day is like summer, and every night is like winter. For life here, each day becomes a battle.
For much of the year, Africa's savannah bakes under the Equatorial sun. It's a drastic change for the equator's usually seasonless conditions.
Our sun is a protector, a nourisher and a giver of life to all the planet's creatures. But it can also be a tyrant - no more so than at the Equator.
The Equator is famed for its heat, but there are parts where the sun is challenged by snow and ice. Here, animals and plants must adapt, or die.
