STANCE: The next question to consider is stance. Do carnivorous dinosaurs like Tyrannosaurus and Dilophosaurus have a bipedal or quadripedal stance? The answer should be obvious from the Museum trip.

Your next job then is to survey modern vertebrates and make a list of those with a bipedal stance typical also of tyrannosaurs and dilophosaurs. You should consider each class of tetrapod vertebrates. Try to identify particular species or groups that have the same stance as our two dinosaurs. At the minimum, you should consider each animal in the list below. Ideally, you should evaluate as many amphibians, reptiles, birds, and mammals as possible. Your goal is to identify animals that are good dinosaur analogues with respect to stance. If you are not sure what some of these animals look like, consult zoology reference material in the College Library.

      CLASS: Amphibians
            frogs, toads, salamanders
      CLASS: Reptiles
            snakes, lizards, crocodiles, turtles
      CLASS: Birds
            crows, hawks, ostriches, penguins, geese, sea gulls
      CLASS: Mammals
            dogs, cats, humans, horses, goats, whales, bats, rats,
            kangaroos

LAB #6; ASSIGNMENT #2. Email me your analyis of the stance of each of the above tetrapods (and any additional animals you wish to include). Deadline - Tuesday, May 1, 4 PM.