Is South America was the part of Antarctica

In this video we have to highlight some important features of South America with special reference to its location...
South America have a unique geography, it has highly mountains and one of the longest mountain range, like Andes, and have plateaus in form of Brazil and Gayan.
Further more world largest rainforest area inform of Amazon forest and the world second longest river system like Amazon river also there..
It's unique geography and geology makes it one of the most beautiful continent.