How an ancestral shift to eating more meat changed the course of human history
Human ancestors grew larger about 2 million years ago. This growth happened alongside the start of upright walking and a diet with more meat. These findings contradict theories of gradual size increases.
What changed
No new information regarding human ancestral meat consumption was provided in the latest sources.
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Ancestral Meat Consumption Linked to Increased Body Size
confidence 100%Human ancestors grew larger about 2 million years ago. This growth happened alongside the start of upright walking and a diet with more meat. These findings contradict theories of gradual size increases.
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Ancestral Meat Consumption Linked to Sudden Body Size Increase
confidence 90%Human ancestors experienced a significant increase in average body size approximately 2 million years ago. This growth coincided with the adoption of upright walking and a shift toward eating more meat. The change challenged previous theories that ancestors grew larger gradually over time.
What's confirmed:
- Human ancestors saw an average body size increase from 88 to 132 pounds around 2 million years ago.
- The increase in body size occurred when ancestors began walking upright and eating meat.
- Modern humans evolved in Africa approximately 300,000 years ago.
Still unconfirmed:
- The claim that rye was cultivated before the eight Neolithic founder crops remains controversial.
- Christopher Columbus claimed the Carib Indians ate their neighbors, but this lacks strong evidence.