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Several migrations to the Southern Hemisphere were undertaken by tougher, North American mammal carnivores; fewer species migrated in the opposite direction from south to north.

The result of the intrusion of North American fauna was that hundreds of South American species became extinct in a relatively short time and that about 60% of present-day South American mammals have evolved from North American species.

On Tuesday, the world’s fastest man was alleged to have spent a night with 20-year-old Brazilian beauty Jady Duarte after celebrating his 30th birthday on August 21 at a Rio nightclub recently.

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During the late Eocene, around 35Ma, Antarctica and South America separated and South America became a massive, biologically rich island-continent.

During approximately 30 million years, the biodiversity of South America was isolated from the rest of the world, leading to evolution of species within the continent.

In the last million years since the Late Miocene, South America became connected with the continent of North America via the Panama Block that closed the marine Bolivar Trough, leading to the Great American Interchange, the interchange of biota from both continents.

The Norte Chico civilization in Peru is the oldest civilization in the Americas and one of the first six independent civilizations in the world; it was contemporaneous with the Egyptian pyramids.

It predated the Mesoamerican Olmec by nearly two millennia.