Exam 1 Flashcards
There is an inherent cultural bias in the definitions of ______ that we must consider for the scope of this class
civilization
civilization definition
the process of being civilized; The cultural characteristics of a particular time or place (def. by Franz Boas)
Paco says there aren’t any ____, and that’s the tea!!
laws that ‘force the hand of history’
Relative time
Time relative to stuff; stratigraphy, index fossils, dendrochronology (tree rings)
Absolute time
“exact” time; determined by processing organic compounds; radiocarbon & potassium argon dating
measurement of C14 isotope in organic compound; looks at half life; absolute dating
-Disadvantage: assumes that there is a constant ratio of c14 in the atmosphere ~ which is why the calibration curve is used
Radiocarbon dating
- measures radioactive decay of K40 or Ar40 - gas in volcanic ash
- Need super-heated rock (from volcano) to date ash
- Dating volcanic ash layers above and below to get time range
Potassium-Argon dating
what concept assumes people are subject to forces like natural selection the same as all other organisms
the human niche
- we actively/unknowingly change our ____ unlike other organisms
- Activities and jobs are considered a ____ in human society
niche
human breeding strategy
raise as many babies as you can to survive
How did we survive in a hostile, competitive world (4)
altruism, kin selection, group selection, reciprocal altruism
any behavior benefits the group at the expense of the individual’s self interest
Altruism
- is one answer to (apparently) altruistic behavior
- Have altruistic behaviors because they have relatives in the group, thus more likely to have these behaviors if relatives are in group
kin selection
- another explanation of altruistic behavior
- Based off genes - altruistic genes; one in the species can have a traitor gene that allows them to not think altruistically (i.e.: scar from “The Lion King)
group selection
- most likely explanation of altruism with in apes and people
- “You scratch my back and I’ll scratch yours” - if one is exhibiting altruistic behaviors the others will
reciprocal altruism
DeWall said that reciprocal altruism comes from
empathy and food sharing
DeWall believes that the emotional satisfaction of ____ feels good
altruism
Last common ancestor of chimps and humans was
6-7 mya in the late Miocene
When did bipedal locomotion evolve in an essentially modern form
3.5 mya
Why is bipedal locomotion preferred
energy efficient for long distances, leaves our hands free
what was the sexual reproductive strategy model by Lovejoy
Asks the question of how did females get males to cooperate with them in raising children
Fundamental Selective Triad
different for males and females; energy for each differs in where energy is distributed between males and females
- Food
- Safety
- Reproduction
Lovejoy argues for ____ based on female assurance of paternity and male provisioning behavior
pair bonding
Pair bonding leads to (3)
- males putting energy into raising children with females
- assurance of paternity
- food sharing ~ feeding females so they have more energy for raising children
Why did males evolve to have smaller canines
-because women and sexual selection (pair bonding); males want females to pick them
Females evolved _____ and ______
permanently enlarged breasts and ovulatory crypsis (hidden ovulation)
Hidden ovulation evolved after
humans became bipedal and sexual organs were hidden
Early humans lived in what kind of groups for protection
Males in the outer circle and men in the inner circle
Homo habilis was discovered by the Leakeys at
Olduvai Gorge in 1960 @ 1.6-1.9 mya
The first skull was found at
E. Turkana, Kenya 1.8 mya
Tool use (specifically stone) began at about
3 mya
The Leakeys referred to the early stone tool industry (3 mya)
Oldowan industry
What are the 3 different stages of Oldowan tools
cobble, chopper, discoid
what is the Type A Oldowan typology
Artifacts without bones: Specific possibly modified rocks
what is the Type B Oldowan typology
Artifacts with remains of a single animal (=butchery site)
what is the Type C Oldowan typology
Artifacts with remains of several animals (=living floors or camps)
Key Early locales for Type A
- Gona, Hadar, Ethiopia @3-2 mya
2. Shangura Formation, Ethiopia @2-1 mya
Key Early locales for Type B
- FLK N Olduvai Gorge, Tanzania @ 1.8-1.5 mya
Key Early locales for Type C
- FxJj5 at Koobi Fora
2. FLK “Zinj”
Human Behavior emerging through (3)
pair bonding, tools, larger brains
Food is the only ____ we have made _____
biological function; social
What were hand axes used for? (5)
a. Butchering animals
b. Digging for tubers (potato like roots)
c. Stripping bark from trees
d. Hunting- smaller animals
e. Flake dispensers
Time range for the Oldowan tool technology
1.5 mya to 300,000 ya
Bifacial technology is dated at approximately
1.4 mya
Acheulian refers to
hand axe variation
What is adaptive radiation
When people leave for scavenging, increase in cranial capacity (and critical thinking), also diversification of niches
Define reverse polarization
when the poles switched (north becomes south) which occurred approximately between 700,000-400,000 ya
What site produced evidence that people were becoming hunter gatherers?
Olorgesailie, Kenya @ 700,000-400,000 ya
What was found at the Olorgesailie, Kenya site?
Huge number of Gelada baboon bones (95) and 60 hand axes
The gelada baboons found at
Olorgesailie were mostly
young males that lived on the fringe that died one by one
The cut marks on the baboon bones show either
pre-humans were eating meat OR leopards killed the baboons and the humans scavenged the scraps
What site was a human tooth found where there were 100,000 stone tools and remains of 40-45 individuals
Zhoukoudian Cave, China @ 600,000 - 230,000 ya
After 400,000 ya people began to adapt to
diverse niches
People at about 400,000 ya are lumped into the group of
archaic homo sapiens
_____ begins at least 400,000 but is not ubiquitous after 300,000 ya
controlled fire use
Evidence of fire
fire pits and hearths (rings or rocks)