ANTH 1006 Lecture Notes - Lecture 3: Wisdom Tooth, Selective Breeding, Sexual Attraction
- Early 1650s, ..
- Catastrophes pick up sediment and make new layers. They change everything.
- This ties into evolution- everything is changing- progression.
- Lyell- do we need a catastrophe for new strata to be built?
○ There is a uniform way that the world is going to change.
§ Darwin thought of this also.
- You need to be embedded in the field - you need to be well respected to bring your
own ideas.
- Lamark - inheritance of acquired characteristics!!**
○ Evolution was always progressive- always going towards something better.
○ Every time there is a genetic change, it is going to be better for you.
○ Believed that offspring only acquired positive traits.
- Darwin traveled all over the place
○ Trying to understand the rise and fall of populations.
○ Concept of natural selection
○ Taxonomy
○ Looking at why some people live and why some people don’t
○ Publishes findings in 1850s
- Natural selection- process by which nature selects forms most fit to survive and
reproduce in a given environment and those forms do so in greater numbers than other in the
same population.
- You can be fitter for a specific environment - ability to hide under a desk that will protect
you. (smaller person would be more fit)
- Artificial selection involves human involvement which changes things around (dog
breeding)
○ Wisdom teeth - we changed it for society
- Adaptation:
○ Spotted moths
§ Some moths fit in and others didn’t - depending on background
□ Makes the population smaller for the ones that standout
○ You never know what strains could affect you or unaffected you
§ Not being sick when EVERYONE around you IS.
○ Darwin wanted to understand how traits passed and where did trait variation
Document Summary
Catastrophes pick up sediment and make new layers. This ties into evolution- everything is changing- progression. There is a uniform way that the world is going to change. You need to be embedded in the field - you need to be well respected to bring your own ideas. Evolution was always progressive- always going towards something better. Every time there is a genetic change, it is going to be better for you. Believed that offspring only acquired positive traits. Trying to understand the rise and fall of populations. Looking at why some people live and why some people don"t. Natural selection- process by which nature selects forms most fit to survive and reproduce in a given environment and those forms do so in greater numbers than other in the same population. You can be fitter for a specific environment - ability to hide under a desk that will protect you. (smaller person would be more fit)
