Practice question · Put in order
Order the milestones of hominization.
- Bipedalism established on an ape-sized brain
- Homo sapiens appears in Africa
- Brain expansion accelerates
- Laetoli footprints pressed into volcanic ash
- First flaked stone tools appear
- Sapiens becomes the only surviving human species
Hints
- Walking comes before tools, and tools before large brains.
- Our own species occupies only the last fraction of the sequence.
Show the answer
- Bipedalism established on an ape-sized brain
- Laetoli footprints pressed into volcanic ash
- First flaked stone tools appear
- Brain expansion accelerates
- Homo sapiens appears in Africa
- Sapiens becomes the only surviving human species
Why
Walking, then tools, then brains, then us, and the last line only becomes true within the last ~50,000 years, which is a rounding error on this scale.
Practise Human Evolution and Hominization
The app has 4 more questions on this lesson, and keeps your place in the course. History I is free to start.
More questions on Human Evolution and Hominization
- Lucy walked upright with a brain of about 400 cc, roughly a chimpanzee’s. Why does that ordering matter for…
- What plausibly paid the energy bill for a brain that burns ~20% of resting metabolism?
- Brains are metabolically expensive and ours consumes about a fifth of our energy at rest. What made that bill…
- A human brain is about 2% of body weight. What share of resting energy does it burn?
- Complete the statement about our species’ situation.