Dinosaurs, these magnificent creatures that once roamed the Earth, continue to captivate our imagination and our scientific curiosity. The age of dinosaurs began around 230 million years ago, during the Mesozoic era, marking a period of dominance of these fascinating reptiles. Before the dinosaurs, appearance of the dinosaurs and after the dinosaurs. This era, often referred to as the "age of dinosaurs", saw the emergence of some of the most iconic species, from the imposing Brachiosaurus to the ferocious Tyrannosaurus rex. Their existence demonstrates the incredible diversity and adaptability of life on Earth, with species thriving in a variety of habitats, from lush forests to arid deserts.
The extinction of dinosaurs, around 66 million years ago, remains one of the most intriguing subjects in paleontology. This catastrophic event, believed to be caused by a combination of volcanic eruptions, climate change and the impact of a massive asteroid, led to the end of the Cretaceous and paved the way for the rise of mammals. The sudden disappearance of dinosaurs left a void that has intrigued scientists for centuries, sparking numerous theories and extensive research to uncover the details of this mass extinction.
Beyond their appearance and extinction, dinosaurs are a source of endless fascination because of the strange and sometimes puzzling facts that research has uncovered. For example, some dinosaurs, like Stegosaurus, had brains the size of walnuts, noticeably small compared to their massive bodies. Others, like Parasaurolophus, had elaborate crests on their heads that could have been used for communicating or attracting mates. The discovery of dinosaur fossils with preserved feathers has revolutionized our understanding of these creatures, suggesting a closer evolutionary connection to birds than previously thought.
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FULL VIDEO: https://www.youtube.com/watch?v6HG-rCPTYXg
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World of dinosaurs:
– Here we are in the land of dinosaurs. This is Pangea. A vast ocean, called Panthalassa, surrounds this landmass, forming a single continent.
Contrary to popular belief, Pangea does not have a single climate. The land of the dinosaurs was neither a vast swamp as far as the eye could see, nor an almost tropical jungle. The climate was not the same on one side or the other of the continent.
In the center of Pangea, including present-day Europe, the Americas and Africa, the climate was predominantly desert. On the other hand, what is now India, Siberia and even Antarctica benefit from a temperate climate.
The Earth is far from what we know today. It's like someone mixed up all the pieces of the puzzle. Nothing seems to fit. And yet, for tens of millions of years, this was the configuration of the Earth. This unique land was also the birthplace of dinosaurs. These animals have experienced a variety of climates, geological periods and adapted to different environments, from deserts to mountains to jungles.
About 230 million years ago, the first members of the dinosaur group began to appear. Depending on the geographic area, environment and climate, animals diversify to adapt. If you remember our little introduction, we mentioned nearly 1,200 species. And these are just the species known to man. So you can imagine the diversity that reigned in this large family.
When we think of dinosaurs, we immediately think of large animals.
But the first dinosaur specimens are far from the usual cliché of giant dinosaurs.
The oldest confirmed dinosaurs, which lived 230 million years ago, were the saurischians. First, there is Saturnalia, a dinosaur whose classification was long debated until 2007, because it includes features of both sauropodomorphs and theropods. It is about 1 to 2 meters long and probably no longer than an adult's knees.
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Today's program:
00:00 – When it all started…
08:35 – The big family of dinosaurs, who are they really?
10:39 – Are dinosaurs really gigantic animals?
17:54 – The ancestors of dinosaurs
11:10 p.m. – Saurischians, dinosaurs with lizard pelvis
27:46 – Ornithischians, the dinosaurs of the birdbath
32:50 – Are marine reptiles dinosaurs?
39:25 – Pterosaurs and dinosaurs
46:37 – Dinosaurs: cold-blooded or warm-blooded?
52:05 – Do dinosaurs lay eggs?
57:15 – The life of dinosaurs: between ferocious predators and good parents…
59:50 – How did dinosaurs take care of their offspring?
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