First Children Encyclopedia

(Marvins-Underground-K-12) #1

In the forests of North America.


Find a friend


Did they talk?


Nobody knows if dinosaurs made sounds,


but we suspect they did. Parasaurolophus,


a hadrosaur, may have done this


by blowing air through its crest.


Other hadrosaurs had different-shaped crests,
suggesting they made different sounds.

Parasaurolophus

Talk like a frog
Brachylophosaurus had a short, solid crest.
It may have had an inflatable pouch on
the outside of this that could be used to
make noises, a bit like a frog’s
throat pouch.

Brachylophosaurus

Lambeosaurus
skull


Parasaurolophus
skull Hypacrosaurus
skull

Throat
pouch

Become


an expert


194-195
Cretaceous
cows

Crest

Crest

189

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