what I learned---week 1

this week I learned more trivia than anything. I learned that Darwin was studying finches specifically, that there MAY be evidence of the meteor that supposedly wiped out the dinos, all though I am still convinced that such an impact would have altered the earths orbit at least a little, However I have come to the realization that dinosaurs, being cold blooded, could have survived the heat if the planet was closer to the sun, in which case the impact would have moved us far enough away that mammals could thrive. I also learned about chemosynthesis, which is a form of photosynthesis that uses volcanic heat instead of light from the sun.