Volunteer notetakers needed
Prof: Jennifer Carpenter
A midterm MC, try and phrase them so you don't have to memorize long lists of facts and
phrases, more about understanding the concept than memory.
16 short questions, 100-200 words each, free to ask questions, write short talk for news
article and longer and detailed news piece when scientists come to our class. You hand
that in and will be marked for facts, interesting and make sure to get all the information
on that day. You won't get in contact with them again. Somebody comes and talks to you
and you write it down. You can just go to twitter and see type of things they write. it will
be 140 characters and don't have to use twitter. Press Conference will be announced it is
in the schedule. It will be after the midterm and it is in the course detail. Will give a week
or two weeks to do so.
Today- finish where we left off
• Artificial Selection- how Darwin said you can select breed and cross breed them. select
certain individual and breed them to change them. It is naturally occurring in the
The principle of population
Lecture 3: Evolution by means of natural selection
• Darwin's thought: all lives on earth changes from single species takes long time and
branches through natural selection.
Evolution: you have change in species and little at a time. it is something that happens
very quickly and something that happens very slowly.
• Viruses for example happens very quickly
• Evolution is heritable change over time
Natural Selection: imagine you have a mammals descending from elephant looking from
south. the climate at some point got much warmer, they spread through Europe. then
suddenly, temperature dropped and southern europe got cold. imagine this one individual
that was able to stay warmer, the energy saved to get more females. (Brown furry one) he
will leave more offspring than other one. it happens again again and again. the population
will get more hairy. Some individual will produce greatly in a population than some, will
leave more descendants.
• He is more "fitter" than othe