Where did dinosaurs live?
Palaeontologists have discovered that dinosaurs lived on all of the continents – but not all the types lived everywhere. The reason for that lies in the past - about 230 million years ago, at the beginning of the age of dinosaurs, the Earth was very different from the way it is today. There was only one continent, a supercontinent called Pangaea. Unlike the present Earth, much of Pangaea was in the Southern Hemisphere. Because of plate tectonics, which caused volcano eruptions, earthquakes, mountain building, and sea-floor spreading, Pangaea started breaking apart. Its pieces then spread across the globe. The earliest dinosaurs may have only lived in certain parts of Pangaea, so as a consequence different dinosaurs were scattered around the globe. The oldest known specimens were all discovered in Argentina and most dinosaur bones – an estimated 7,600 samples – were reported to have been found in China.

Rešitev prvega primera je .

Rešitev prvega primera je .

What did dinosaurs eat?
Because of popular films, featuring ‘Tyrannosaurs rex’ and ‘Velociraptor’ many people think that most dinosaurs were carnivores – meat-eating dinosaurs. They are wrong – about 65% of dinosaurs were herbivores – plant-eating dinosaurs. Scientists know this because they have studied the content of the dinosaurs' stomachs and their teeth - most plant-eating dinosaurs had flat teeth that enabled them to snip and strip vegetation. They did not eat grass, because grass hadn't evolved yet. They ate leaves of different trees, such as the ginkgo tree, and flowering plants. The last of the dinosaurs – before they became extinct - ate fruit, too. The carnivores had long, sharp teeth designed for tearing through tough meat. They ate other dinosaurs, lizards, eggs, insects, turtles and early mammals. Because they had different kinds of teeth, some scientists think that some dinosaurs adapted to both types of food, which would make such dinosaurs ‘omnivorous,’ meat- and plant-eaters.