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Lena Synnerholm's blog.
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How demographics works
2024-12-12 15:58
Demographics is about the size of a population and how it is composed.
How technological progress works
2024-11-25 13:55
There is a mix-up between brain capacity and which technology people use. On one hand simple technology is equalled to people would have been stupid. On the other hand it is claimed we should have developed high technology very long ago.
On nationalistic archaeology denial
2024-11-02 19:53
One expression of misplaced nationalism is claiming all they can come up with would come from their own country. Or at least the country which they see as precursor.
The origin of human language
2024-09-29 15:54
Some imagine “cavemen” with a very limited language. If they talk at all people imagine pidgin. The present-day human species have never talked like that when people spoke their mother tongue.
The origin of humanity
2024-09-27 14:40
I know people don’t like being grouped with monkeys. However, purely biologically we are. Our genus (Homo) have only had one species (Homo sapiens) since at least the end of the last ice age.
Famous prehistoric mammals
2024-09-09 13:04
After the Cretaceous–Paleogene mass-extinction it took 15 million years for the world to recover. Mammals and birds then evolved to take over the role of the dinosaurs. Towards the end whales arose too take over after the plesiosaurs.
On the Cretaceous–Paleogene mass-extinction
2024-09-02 12:16
The world looked a bit differently 66 million years ago. Pangaea had splintered into Africa, Antarctica, Australia, Eurasia, North America and South America. Antarctica was connected to Australia, and Eurasia to North America.
Contemporary with the dinosaurs
2024-08-29 12:25
Plants has changed much since the time of the dinosaurs. However, not so very much as many imagine. Mosses, lycophytes and ferns existed long before the dinosaurs.
Real dinosaurs
2024-08-17 19:29
Some perceive dinosaurs as entertainment for children. Dinosaurs are actually subject to scientific investigation. As they are described today they make sense to me. They make as much sense as platypuses, kangaroos and bats.
On the Permian-Triassic mass extinction
2024-08-12 12:53
At the end of the Permian Pangaea was born. Africa, Antarctica, Australia, South America and South Asia had long held together. It is probably rather obvious how Africa and South America were stuck together.
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