Let's review what we have learned so far. Click on the best answer to each question. We'll keep track of your answers and let you know how well you did at the end.

Question 1:

Powered flight has evolved in:

	Birds
	Insects
	Bats
	Pterosaurs
	All of the above

Question 2:

Archaeopteryx was an amazing find because:

	Its name means "ancient wing"
	The skeleton had reptilian features such as a long tail and a mouth full of teeth
	The skeleton had feathers and wings
	Both a and b
	Both b and c

Question 3:

Scientists agree that birds actually are dinosaurs because:

	Birds share well over 100 anatomical features with dinosaurs
	Velociraptor runs like an ostrich
	They all have feathers
	They are all cold-blooded
	All of the above

Question 4:

Because of the many shared skeletal features, birds can be considered to be:

	A Saurischian dinosaur
	A Theropod
	A Maniraptoran dinosaur
	A and B only
	A, B and C

This will contain the quiz score and message.

Good try, but powered flight has also evolved in other organisms.

Try again

Think about the mix of features that make Archaeopteryx unique.

Try again

Not quite. Think about how birds fit into the dinosaur lineage.

Try again

Think again about the way that dinosaurs were grouped on the cladogram.

Try again

Powered flight has evolved in all four of these different groups of animals. Let's try another one.

Archaeopteryx showed an interesting mix of reptile and bird features, providing the first evidence of a link between the two.

Good job! Birds do share more than 100 features with dinosaurs! And now for the final question...

It is equally correct to call a bird a Saurischian, a Theropod, or a Maniraptoran dinosaur.

That's it, let's tally your score!