Dinosaurs probably communicated both vocally and visually. Large meat eaters like Tyrannosaurus rex, with its loud roar, or a Triceratops shaking his head, would have made its intentions very clear. The chambered head crests on some dinosaurs such as Corythosaurus and Parasaurolophus might have been used to amplify grunts or bellows. Mating and courtship behavior and territory fights probably involved both vocal and visual communication. Scientists believe that the sounds created by dinosaurs like Parasaurolophus were so individual that each had a slightly different tone. They also believe that these dinosaurs had different calls, ranging from low rumbles to high-pitched notes, which they used for different situations.
- Did dinosaurs get sunburned?
- Did all dinosaurs lay eggs?
- What did dinosaurs use their teeth for?
- Would it hurt if a plant eating dinosaur bit you?
- What did dinosaurs eat?
- Which was the smallest dinosaur?
- What does the word dinosaur mean?
- Which was the biggest dinosaur?
- When did the dinosaurs live?
- What is the Sun made out of?
- When did the woolly mammoths live?
- Will animals and plants that die today become fossils?
- Have scientists ever discovered an entire animal fossil?
- What were the first animals to appear in water and on land?
- What were the first primitive plants to appear on land?
- What are fossils?
- Which country pollutes Earth the most?
- What is Earth Day?
- What is acid rain?
- Why is it important to conserve water?


