Evolution Quote by Yuval Noah Harari
““What then drove forward the evolution of the massive human brain during those 2 million years? Frankly, we don’t know. Another singular human trait is that we walk upright on two””
About This Quote
Source Interview: The Future of Humanity, Yuval Noah Harari, 2021
The drivers of brain evolution remain uncertain, but upright walking is a unique human trait that shaped development.
In simple terms: Upright walking is a key human trait; brain evolution unclear.
Key Takeaway
Study human evolution further.
Themes
evolution
anthropology
biology
Mood
curious
inquisitive
Type
scientific
philosophical
When to use this quote
- archaeology
- education
- public policy
- science communication
Key Concepts
cognitive science
phylogeny
Questions to Reflect On
- What other traits contributed to brain growth?
- How does posture influence cognition?
A Different Perspective
Complex causes may be oversimplified.
![“Perhaps no order of mammals presents us with so extraordinary a series of gradations as this [step by step, from humans to apes to monkeys to lemurs] - leading us insensibly from the crown and summit of the animal creation down to creatures, from which there is but a step, as it seems, to the…” quote by Thomas Huxley](https://sms4smile.com/quotes/img-quotes/f0b/thomas-huxley-1183_animal_perhaps-no-order-of-mammals-presents-us_3051.jpg)
