The deficiencies of the Americas
2025-04-18 17:25 Towards the end of the last ice age North and South America were populated. Since the seas were lower then there was no Bering Strait. People could simply walk to Alaska. However, the way south from there was almost entirely ice-covered.
Australia’s infertility
2025-04-10 13:33 There is considerable uncertainty on when Australia was populated.  Certain are the current human species reached it on rafts.  Likely they were built from bamboo.  What we know is the straits being too wide to see across.
Eurasia’s biogeographical advantages
2025-04-04 12:53 Before the current human species Eurasia was inhabited by other species.  So it had been for more than 1.5 million years.  This has given organisms some opportunity to adapt to humans.
Africa’s biogeographical disadvantages
2025-03-27 19:56 When I talk here about Africa I mean Sub-Saharan Africa.  Historically the Sahara has consisted a greater barrier than the Mediterranean.  Most from Africa’s north coast are more similar to Europeans than people south of the Sahara.
The basics of biogeography
2025-03-14 12:38 At the time of the extinction of the dinosaurs the world was already divided into continents.  Antarctica and Australia were still connected.  However, we don’t know much about the organisms of the time in Antarctica.
Everything can’t grow everywhere
2025-02-26 13:04 My paleomaps have a legend linking to different images.  I wanted to make it clear what vegetation these refers to.  The differences between different forests and woods I think is clearest.
On myths and fairytales
2024-12-31 15:03 Ancient peoples tried to explain what was outside of human control. They were used to think in terms of human interactions. Phenomena were anthropomorphised into gods to be more easily thought about.
How demographics works
2024-12-12 15:58 Demographics is about the size of a population and how it is composed.
The myth of the uninhabited habitable area
2024-11-28 17:09 Many seem to have trouble grasping how populated the world is.  Areas not built up or clearly fenced in are mistaken for unpopulated.  At worst parts of countries are believed to be entirely uninhabited. 
The ice ages’ effects on geography
2024-11-27 13:56 One should not overestimate how much geography has changed during the human era.  The largest differences are caused by the ice ages.  The three last in particular I find interesting.  Not only were they particularly cold.