BIO 3102 Lecture 9: Lecture 9 notes.docx
Document Summary
Little reptilian form birds and little insulated mammals living in burrows are waiting to take over from the dinosaurs. Develop homoeothermy to keep them warm and were hunting at night. Middle eocene 50. 2 ma/ middle miocene 14 ma/ modern world: continents are going to migrate mostly to the positions were they are today. It is important to note that birds do not come from the same lineage at tradactals they come from a separate tree: when the dinosaurs disappear their environment becomes available, movement: flight. Barbules what these do is they take each shaft and lock it to each other. Pneumatised: other thing they have done is no teeth in the jaw they use keratin. Reproduction: parental care: birds lay eggs, happens in the birds that does not happen in the reptiles is parental care. Individuals have a small amount of young and taking care of them for a period of time.
