Thursday, February 16, 2017
10:00 - 11:00; 60 min. -
Biology:
Vertebrate:
Aubrey was given an opportunity to compare and contrast some bones of animals in the class: Chordata. She reviewed the vertebrae of a Fish, Shark, and Pelican she had seen on Tuesday. With those on the table, a bottlenose dolphin vertebra was added to the mix. Then we examined the same bone from the largest dolphins; the orca. We then examined vertebrae from sea lions, sea elephants, gray whales, and fin whales. Aubrey was asked to identify the similarities and differences in size, shape and mass. We then discussed why these bones are the way they are, and what advantages they give a chordate. We examined the teeth of a carnivore (dolphin) the baleen of a whale, and the teeth of an herbivore. We discussed how teeth are specialized for the kind of food an animal eats. Aubrey was tasked with identifying the dentition of an animal, and if they would be carnivores, herbivores, or omnivores.