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SECONDARY SEXUAL CHARACTERISTICS
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Classroom Contents
How Did Birds Get Their Wings? Feathered Ornithomimids from Alberta and the Origin of Wings
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- 1 Intro
- 2 FIRST HALF OF 19th CENTURY
- 3 SECOND HALF OF 19 CENTURY
- 4 DISCOVERY OF FIRST FEATHERED DINOSAURS IN 1998
- 5 THE OLD LOOK OF VELOCIRAPTOR
- 6 EVIDENCE OF FEATHERS IN VELOCIRAPTOR
- 7 THE NEW LOOK OF VELOCIRAPTOR
- 8 VELOCIRAPTOR LOOKED LIKE AN ANGRY BIRD
- 9 PHYLOGENETIC DISTRIBUTION OF FEATHERS IN DINOSAURS
- 10 TYPES OF FEATHERS FOUND IN DINOSAURS
- 11 FUNCTION OF SHAFTED FEATHERS
- 12 HYPOTHESES FOR THE EVOLUTION OF WINGS AND FLIGHT
- 13 WHY DID WINGS FIRST EVOLVE?
- 14 GEOGRAPHIC OCCURRENCES OF DINOSAURS WITH FEATHER IMPRESSIONS (PRE-2012)
- 15 DISCOVERY OF THE FIRST FEATHERED DINOSAURS IN NORTH AMERICA
- 16 FIRST FEATHERED DINOSAURS FROM NORTH AMERICA
- 17 THREE FEATHERED ORNITHOMIMIDS
- 18 ARRANGEMENT OF COVERT FEATHERS ON THE WINGS OF MODERN BIRDS
- 19 CALAMUS IS A HOLLOW STRUCTURE
- 20 IS THERE EVIDENCE FOR THE PRESENCE OF SHAFTED FEATHERS IN JUVENILE ORNITHOMIMIDS?
- 21 AGE OF WING DEVELOPMENT
- 22 SECONDARY SEXUAL CHARACTERISTICS
- 23 WING FUNCTION IN ORNITHOMIMIDS
- 24 ORIGIN OF WINGS
- 25 CONCLUSIONS
