Why do Africa and Asia Have So Many Giant Animals Compared to The Rest of the World?

Why do Africa and Asia Have So Many Giant Animals Compared to The Rest of the World?

For hundreds of millions of years, an abundance of large animals, the megafauna, was a prominent feature of the land and oceans. However, in the last few tens of thousands of years—a blink of an eye on many evolutionary and biogeochemical timescales—something dramatic happened to Earth’s ecology; megafauna largely disappeared from vast areas, rendered either actually or functionally extinct. Only in small parts of the world do megafauna exist at diversities anything close to their previous state, and, in many of these remaining regions, they are in a state of functional decline through population depletion and range contraction.
In the modern world, Africa has more large megafauna than any other region, this being the reason it’s such a popular safari destination. However, there are still plenty of interesting animals which lived there in the Pleistocene epoch but are now extinct. The only continent that can compete with Africa in terms of large animals is Asia.
But why do Africa and Asia have so many giant animals compared to the rest of the world?

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#Africa #Asia #Prehistoric