Modern Humans Flashcards
Where are the oldest human remains from?
From Africa, dated to between 160k - 300k (oldest in Morocco)
What makes humans “modern”
- Rounder braincase, high vertical forehead, no/small browridges, small flat face tucked under braincase, protruding chin, brain is almost all 1350 cc
What do modern humans’ postcrania look like?
- Less robust
- More slender bones (not as thick)
- Longer distal limb bones
- Shallow chest
- Early Homo sapiens still more robust than contemporary humans
- Not cold adapted body type
Where did Homo sapiens come from?
- Evolved in Africa
- Appeared in Europe and Asia 60k years ago
What archeological evidence shows that humans evolved in Africa?
- Distinct Homo sapiens tool industry never found in association with Neanderthals
- Advanced technology appears first in Africa
What fossil evidence shows that humans evolved in Africa?
African fossils of modern humans are oldest (300k and onwards)
What genetic evidence shows that humans evolved in Africa?
- All humans share a common ancestor that lived between 100k - 300k years ago in Africa
- Last common ancestors to non-Africans left Africa 60k - 80k years ago
What is the founder effect in relation to Homo sapiens?
The peopling of the earth is a series of founder effects (a place is found by a small population)
Did modern humans interbreed with archaic Homo populations?
Yes, they interbred with archaic Homo populations in Eurasia
What mode of tools do Homo sapiens use?
Mode 4 tools.
- Production of blades instead of flakes
- Long thin flat with sharp edge
- Soft hammer percussions
- Can be turned into a variety of tool types
- Shape determined by maker, not raw material’s shape
What type of tools did Homo sapiens use?
- Stone: points, knives, drills, chisels, scrapers, arrow heads
- Bone: points, fish hooks, sewing needles, beads, throwing sticks (projectiles)
- Tools have variation in time and place
What are signatures of modern human behaviour?
- Earliest present in 250k years ago in Kenya
- Trade and transport of materials
- Ornamental objects
When did Homo sapiens appear in Europe?
- 40k years ago
- Europe was dry cold grassland with large game
- Homo sapiens had wider range of prey than Neanderthals
- Large game hunters; but also fish, plant foods
- Used tools to process animals instead of teeth
What are some symbolic and ritualistic features of Homo sapiens?
- Shelters
- Fur clothing
- Burials