ANTH 101 Lecture Notes - Lecture 10: Paleomagnetism, Rain Shadow, New World Monkey

24 views3 pages
23 Dec 2016
Anth 101 The Human Past
Paleontological-fossil based
Archaeological-artifact based
Advancements in human evolution: bipedalism, tool use, brain expansion
-occurred in Africa 6 million years ago
-ape ancestry
-perhaps over a dozen hominin species COEXISTED
*remember, Homo sapiens didn’t exist until 2 mya
Natural selection- gradual change of organisms over long periods of time
-Charles Darwin & Alfred Wallace explained how such changes occurred
-Darwin-descent w/ modification & survival of the fittest
-can occur within one species to produce different variations of that species, closely related but
distinct with its own evolutionary direction (majority of these new species become extinct-
survival of the fittest!)
Gradualism-slow, steady accumulation of small changes over a long period of time produces
major changes in descendants of a species
Punctuated equilibrium-rapid, dramatic evolution over short periods of time are separated by
longer periods of little change
Mammals, particularly primates:
humans similar to apes, monkeys, prosimians
monkeys/apes centered in specific parts of the world, whereas humans occupy basically
every part of the Earth
most primates are arboreal aka live in trees
lower primates-characteristics more like older species
upper primates-more adaptive, bigger brain, better senses
apes existed in Africa FIRST, then begins to migrate
-ape population declined during Miocene Era because the climate cooled and
forests declined
-monkeys increased & spread out
*remember: Ice Age aka Pleistocene epoch occurred 1.75 mya to 11,600 years ago
Difference between humans and apes:
find more resources at
find more resources at
Unlock document

This preview shows page 1 of the document.
Unlock all 3 pages and 3 million more documents.

Already have an account? Log in

Get OneClass Notes+

Unlimited access to class notes and textbook notes.

YearlyBest Value
75% OFF
$8 USD/m
$30 USD/m
You will be charged $96 USD upfront and auto renewed at the end of each cycle. You may cancel anytime under Payment Settings. For more information, see our Terms and Privacy.
Payments are encrypted using 256-bit SSL. Powered by Stripe.