Biology 101


	Mutation is random; natural selection is the very opposite of random. Richard Dawkins Lecture Downloads

	Lecture 19: Moving to Land The four-legged body plan first evolves in fish; the rise of modern amphibians.		Lecture 23: Avian Ancestors While crocodiles still roam the earth, the dinosaurs came and went, or did they?
	Lecture 20: Modern Amphibians Frogs and salamanders can live on land, but are still tied to water.		Lecture 24: Birds in Flight Taking flight in an amazing adaptative radiation.
	Lecture 21: Making An Egg Amniote characteristics and the radiation of turtles.		Lecture 25: Monotremes & Marsupials Egg-laying monotremes and pouched marsupials.
	Lecture 22: Squamates Reptile characteristics and the diversity of lizards and snakes.		Lectures 26: Placental Mammals The most successful radiation of mammals is tied to the umbilical cord.
			Lecture 27: Video on Evolution Why do we need to have sex? What is the usefulness of the male in natural populations?


	Outline Downloads November 10 Lecture 19 November 12 Lecture 20 November 17 Lecture 21 November 19 Lecture 22 November 24 Lecture 23 December 1 Lecture 24 December 3 Lecture 25 December 8 Lecture 26 December 10 Lecture 27 December 17 Final Exam Download Lecture Schedule Download Boulder Creek Download Living With Snakes Download Nests Archived Lectures Midterm 1 Lectures Midterm 2 Lectures

Email Dr. Hollingsworth
hollings@sciences.sdsu.edu