Tutorial title - History 4 Life history
11 important questions on Tutorial title - History 4 Life history
What is the difference between r and K selected species
K: live longer, fewer offspring, more investment per offspring
Describe life history (+ primates)
Result of trade-off on energy expense on growth/mainteance and fighting infection/reproduction and raising offspring
Primates: long life histories
What is special about modern human life history + info human life history
- Higher grades + faster learning
- Never study anything twice
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Describe knowledge-intensive niche (hunter-gatherers, youth, lifespan)
Long youth: need long growth period with early birth, need long period of learning to become good forager
Long lifespan: need long productive life to invest calories in long youth of next generation
What can fat babies show us with birth timing
Who cares for children (male, family, success)
But
- Men share food beyond family
- Reproductive success could be better served by investing in more mating opportunities
What is grandmother hypothesis
Post-menopausal life is rare in mammals
'Repositories of knowledge'
What is the favorite/best life history indicator and describe how it works
'Perikymata' -> growth increments, form in 6-12 days (tree rings of the teeth)
Amount and thickness tells speed of development
Which 2 hominins had chimpanzee like development and in which way
Short life expectancy
Young age of first reproduction
Fast development like chimpanzee and great apes
Describe homo erectus life history
1000 cm3 brain
Smaller sexual dimorphism than afarensis and paranthropus -> maybe different social organization?
Describe KNM-WT 15000 (turkana boy)
1.6 Ma
Erectus
Almost grown -> around 160 cm, 48 kg
Stature age 15-18
Skeletal age 13-14
Dental age 10-12
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