Table of Contents
Dinosaurs
Quack like a duck
Dinosaurs didn't roar, but they probably quacked and honked like today's geese. 1)
All areas of the Earth
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)
Chicxulub Crater
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)
Natural History of Oxfordshire
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)
Cretaceous Extinction
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
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)
Species
Estimates of the number of dinosaur species found in the Mesozoic Era range from 1543 to 2468 species. 7)
Asteroid
Many scientists believe the asteroid hit the Yucatan Peninsula in Mexico 65 million years ago and caused or contributed to the extinction of the dinosaurs. 8)
Birds are dinosaurs?
Technically dinosaurs are not extinct, as birds are considered by science to be a type of dinosaur. 9)
0.1% of time
Dinosaurs lived on Earth for 150 million years. For only 0.1% of that time, we have been on earth. 10)
Not much to go on
Most dinosaurs are known based on only one tooth or bone. 11)
Diplodocus
The longest dinosaur Diplodocus was 90 feet and was discovered in Wyoming, USA. 12)
Less than a chihuahua
The smallest known dinosaur was about 2.25 inches tall and weighed less than a chihuahua. 13)
Terrible lizard
The word “dinosaur” comes from ancient Greek and means “terrible lizard.” 14)
100 million years old bones
In 2015. A 4-year-old looking for fossils found bones that were 100 million years old. 15)
Jurassic Park sounds
The dinosaur sounds in the movie “Jurassic Park” were created from recordings of tortoises having intercourse. 16)
Dominant land reptiles
The first dinosaurs formed about 230 million years ago, in the part of the supercontinent Pangea that now corresponds to South America. Before that time, the dominant land reptiles were archosaurs (“ruling lizards”), therapsids (“mammal-like reptiles”), and pelycosaurs. 17)
Warmblooded or cold-blooded?
It is unlikely that giant dinosaurs, such as the Argentine dinosaur, were warm-blooded because they would have cooked from the inside out in a matter of hours. 18)