Boy, Were We Wrong about Dinosaurs

What kind of animal did the ancient Chinese believe the giant bones they found belonged to?

• dinosaur
• komodo dragon
• dragons
• mammoth

Scientists learned that dinosaurs' legs actually were straight under them making them run _________ and graceful, not clumsy!

• slow and lazily
• in a zig zag and slowly
• fast and graceful
• quick and clumsy

What was the conclusion that science came to about dinosaurs' tails?

• they drug their tails in the dirt
• muscles could not hold up their tails
• their tails were actually short
• their tails had stiff tendons which held them out straight

True or false- Dinosaurs are cold-blooded, like lizards.

• true- they are cold-blooded
• false- they are warm blooded
• neither- they were somewhere in between

True or False- Most scientists think that a meteor or comet killed dinosaurs.

• true
• false

When scientist first found the horn-shaped bone, they thought it belonged on the Iguanodon's ____________.

• nose
• fingers
• back
• tail

Inside of the dinosaurs' bones scientists found ______

• small cavities for air flow
• lots of blood vessels with new bone growth
• deep cracks from carrying so much weight 
• elastic fibers that made the bones stronger

Some fossils show that dinosaurs may have _______

• had coarse hair or spines
• rows of hard beads
• smooth skin, like a salamander
• marks from feathers 

New X-rays from dinosaur skull shows that they had ________

• color vision
• tiny brains
• non-color vision
• brains like lizards

Fossils of dinosaur nests show that the youngsters had _____

• lots of room to grow in the nest
• scratches on their teeth from eating tough plants
• eaten lots of bugs
• been hatched in the same nest as other types of dinosaurs