Earth isn’t really that big, if you think about it. Biodiversity on Earth is really a wide span.
In: Biology
The world is very big. How far is the longest you’ve walked in a day? For me it’s about 15 miles. Almost all of these different people were separated by hundreds of miles with no roads in between. Today with cars and planes we can move much easier, and as a result people are mixing much more, but back then people didn’t want to just spend 3 months walking through a forest to see if other people were there.
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