Why antarctica froze millions of years before the arctic new research?

The Earth acts like a giant spinning top, and Antarctica froze first because of its special spot on the map. Imagine a hot chocolate mug sitting on a cold windowsill. The side facing outside freezes faster than the side near the heater. Antarctica is like that cold side.

Antarctica sits right at the very bottom of the world. This place gets very little sunlight, especially in winter. It is surrounded by a huge, deep ocean. The Arctic, by contrast, is an ocean covered in ice. Think of Antarctica as a heavy stone and the Arctic as a fluffy pillow. The stone (land) loses heat quickly into the cold space. The pillow (sea ice) keeps some warmth trapped inside.

Long ago, the Earth started to get chilly. Antarctica was already isolated by cold ocean currents. These currents act like a wall, keeping warm water away. This made it easy for ice to build up thick and stay there. The Arctic stayed warmer for a long time because the ocean under the ice still holds heat from deeper water. It took much longer for the Arctic to freeze over completely. So, Antarctica got the cold start, while the Arctic caught up later.

Just like how your backyard freezes before your warm living room, location changes everything.