Follow the link below to the HHMI Interactive “Origin of Birds: Comparative Anatomy of the Domestic Chicken”.
Link (Links to an external site.)
Complete the activity, which reviews the evolutionary history of birds as descendants of the dinosaurs. Take notes on the traits and shared characteristics that reveal which particular dinosaurs the modern birds arose from, such as:
- Archosaurs and birds share a characteristic distinct opening in front of the eyes called the?
- Another feature dinosaurs and birds share is the ______in the hip joint.
- The collarbones (clavicles) of birds, commonly called the wishbone, are fused into a U or Y shaped bone named the?
- Having ____ fingers per hand is evidence that birds are Tetanurans.
- A backward pointing ____ bone reveals birds arose from the line that included Velociraptor.
- Birds have a reduced and fused ___ called a pygostyle, which is a trait seen in Aviadae dinosaurs like Archaeopteryx.
then return here and take the “Chicken Wings Quiz”. You may use your notes to complete this quiz!
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