Wendy

Today we covered sort of a hodge-podge of things, but there was a common thread – ways in which we can see evidence of evolution, both on long time scales, as well as short ones.

Started out the day by picking up where I left off on my Darwin lecture, and then moved on to adaptations, and the principles of natural selection. I frame most of this discussion around the Oldfield Mice experiment, partly because it’s a perfect example of a scientific study that demonstrates the effects of selection on populations, but also because the mice are so cute! I end up using these mice as an example all the way through evolution and speciation, so I have a bunch of slides I’ve animated showing all sorts of things happening to the mice. (Selective forces, like being caught by a hawk when the fur doesn’t match the substrate; and, later, random forces, like severe weather).

This is always one of the favorite topics of the semester – Mendelian genetics, and inheritance. We cover a bunch of really interesting stuff, including questions like:

• “Can two brown-haired people have a blond baby?”
• “Why do I have green eyes and my sister has blue eyes?”
• “Do twins have the exact same DNA?”
• “What are the genes that determine how you look?”
• “Can you choose which traits your child will have?”

We started out the day with our first exam. Well, really, we started out with a game of Pictionary before the exam, as a way of reviewing the material. Then, after the exam, we talked about organ systems, and other aspects of physiology, including nutrition and human reproduction.

Today: Energy for Life (aka Photosynthesis and Cellular Respiration).

Overall, my Summer school strategy is to break up the days as much as possible, alternating lectures with hands-on activities. The schedule is a bit brutal – 9 a.m. to 4 p.m., Monday through Thursday, with an hour break for lunch. I try to never lecture for more than an hour and 15 minutes at a time, and usually a bit less. (Not that my lectures aren’t RIVETING hahahaha, but still . . . ). 😉 It helps keep everyone awake and engaged if I can mix things up a bit.