Catastrophes and Prehistory

USA showered by a watery comet ~11,000 years ago,

ending the Golden Age of man in America.

Approximately 11,000 years ago a variety of animals went extinct across North America. These were mostly mammals larger than approximately 44 kg. Some of the animals that went extinct are well known (like sabre toothed cats, mammoths and mastodons). Others were less well known animals (like the short-faced skunk, giant sloth and the giant beaver). Some animals went extinct in North America but survived elsewhere (like horses and tapirs).

Before this extinction the diversity of large mammals in North America was similar to that of modern Africa. As a result of the extinction, relatively few large mammals are now found in North America.

The possibility that a comet destroyed the mega fauna and human population of North America is highly likely.