10 ppt notes - Early Hominins/Modern Humans Humans in...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Humans in comparison to Non-human primates: Questions of movement, mirror, and language Why do we study human evolution? o People argue over what community they came from Defining Hominin Member of human lineage after its split from ancestral chimps Includes all human species that have ever existed, including the extinct ones The fossil record: Radiometric dating o Carbon-14, measures radioactive decay of carbon Half-life of 5370 years useful for specimens 40,000 year or younger Only works with organic materials o Potassium Argon (K/A) technique Half-life of 1.3 billion years, best if specimen is older than 500,000 years Inorganic substances only Utilizing both relative and absolute dating o Get more data—combining the two Problems of “bias”—stuff that you’re looking at that complicates the info o Geologic processes Things that affect the things you’re looking at—volcanoes, etc. o Political processes Global access to land—where you can and can’t dig If what we have access to is determined by government, there is always limiting things o Other complicating factors? Things that were found by different people in different eras that were cataloged differently and no one knows how to piece it together First Hominins appeared: approx 5.8 million years ago Hominin characteristics: Bipedalism—we walk upright on 2 legs o There are questions of why we adapted this way: Adapting to late Miocene environment? Shift in the rift valley separating chimps and hominins?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/13/2011 for the course ANTHRCUL 101 taught by Professor Kirsch during the Summer '08 term at University of Michigan.

Page1 / 5

10 ppt notes - Early Hominins/Modern Humans Humans in...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online