Why is it said that the Arctic and the Antarctic have many features in common?

Though the Arctic and the Antarctic lie on opposite ends of the globe, they have some features in common. To begin with, both are very very cold indeed. The ice caps that cover them are left over from - Ice Age that covered parts of e Earth a million years ago.

Mirages are another feature that they have in common. Because of tilt of the Earth, sunlight passes through the cold air at a slant. This ending of the rays of light causes fantastic mirages in both the Antarctic and Arctic regions. Halos of light around both the Sum and the Moon can be seen anywhere, but they are most com only viewed in both the Polar Regions.

Halos, sundogs, and moon dogs can be seen both in the Arctic and the Antarctic. Sundogs are the bright areas on the sides of the halos surrounding the Sun, while moon dogs are the bright spots seen on halos that surround the Moon. Many other wondrous phenomena of light can be seen in both the Arctic and Antarctic, including the magical aurora borealis or Northern Lights, and the aurora australis or Southern Lights.