请调整浏览器窗口大小或者请使用手机查看!
The time of year when Africa's savannah bakes under the equatorial sun - which requires a drastic change for the equator's usually seasonless conditions.
The daily battle faced by the wildlife of the high Andes of Ecuador, where every day is like summer and every night is like winter.
The sun is a protector, a nourisher and a giver of life to all the planet's creatures. But as this episode shows, it can also be a tyrant - no more so than at the equator.