Dinosaurs didn't roar, but they probably quacked and honked like today's geese. ¹⁾

Dinosaurs lived in all areas of the Earth at that time. This was due to changes in the ecosystem that occurred as a result of the great Permian extinction. The protoplasts of dinosaurs were free to move and “conquer” more territories of the desolate Earth. ²⁾

Although there have been many theories surrounding the disappearance of the dinosaurs over the years, it is now believed that the whole process was started by an asteroid impact. The discovery of the Chicxulub Crater located in Mexico has led to this conclusion. The asteroid impact caused not only fires and tsunamis but also contributed to climate change, namely a great cooling of the Earth's temperature, which resulted in the extinction of about 3/4 of the then existing ecosystem. ³⁾

The first description of a dinosaur bone was written in the 17th century. The British naturalist Robert Plot included an illustration of a dinosaur bone in his 1667 work entitled “Natural History of Oxfordshire”. Interestingly, he described it as the bone of a giant. In fact, it was probably the bone of a megalosaur, a large theropod from the Jurassic period. ⁴⁾

The end of the era of dinosaur rule is referred to as the Cretaceous Extinction. This phenomenon began about 65 million years ago and led to the extinction of the dinosaurs. It is also the boundary between the Mesozoic and Cenozoic eras, which is ongoing today. ⁵⁾

Dinosaurs probably had feathers. This contradicts the well-established image of these reptiles in pop culture, however, although the velociraptor known from Steven Spielberg's films was probably partially feathered. ⁶⁾