Lecture 19

Question 1

Recent out of Africa Hypothesis

Answer 1

-proposes that modern humans dispersed out of Africa and replaced populations of homo erectus and neanderthals without interbreeding

Question 2

Multiregional Hypothesis

Answer 2

-proposes that evolution of modern humans has been occurring since early humans left Africa 2 million years ago

Question 3

Characteristics of Homo Florensis

Answer 3

• 3 feet tall
• small brain
• long arms
• primitive shoulders
• lived between 14,000-60,000 yrs ago

Question 4

Insular Dwarfism

Answer 4

-small size can be advantageous for reproduction if associated with decreased gestation and generation time

Question 5

Insular Gigantism

Answer 5

• sometimes species on islands get larger

- could be because decreased predation pressure allows species to be large

Question 6

Morphology of Homo Neanderthalensis

Answer 6

• faces that bulge in the middle
• large browridges
• large cranial capacity
• robust, heavily muscled bodies
• more stocky than modern humans

Question 7

Tool use of neanderthals

Answer 7

mode 3