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🌍 Dinosaurs, those magnificent creatures that once roamed the Earth, continue to captivate our imagination and scientific curiosity. The era of dinosaurs began approximately 230 million years ago in the Mesozoic Era, marking a period of dominance by these fascinating reptiles. Before dinosaurs, appearance of the dinosaurs and after the dinosaurs. This age, often referred to as the "Age of Dinosaurs," witnessed the emergence of some of the most iconic species, from the towering Brachiosaurus to the fierce Tyrannosaurus rex. Their existence demonstrates the incredible diversity and adaptability of life on Earth, with species that thrived in a variety of habitats, from lush forests to arid deserts.
The extinction of dinosaurs, about 66 million years ago, remains one of the most intriguing topics in paleontology. This catastrophic event, believed to be caused by a combination of volcanic eruptions, climate changes, and the impact of a massive asteroid, led to the end of the Cretaceous Period and paved the way for the rise of mammals. The sudden disappearance of dinosaurs left a void that has puzzled 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 due to the strange and sometimes bewildering facts that research has unearthed. For instance, some dinosaurs, like the Stegosaurus, had brains the size of a walnut, significantly small in comparison to their massive bodies. Others, such as the Parasaurolophus, had elaborate crests on their heads that could have been used for communication or to attract mates. The discovery of dinosaur fossils with preserved feathers has revolutionized our understanding of these creatures, suggesting a closer evolutionary link to birds than previously thought.
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💥 Dinosaur World:
- Here we are in dinosaur land. 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 either side of the continent.
In the center of Pangea, comprising present-day Europe, the Americas and Africa, the climate was predominantly desert. On the other hand, what is now India, Siberia and even Antarctica enjoy a temperate climate.
The Earth is a far cry from what we know today. It's as if someone has 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 cradle of the dinosaurs. These animals experienced a variety of climates, geological periods and adapted to different environments, from deserts to mountains to jungles.
Around 230 million years ago, the first members of the dinosaur group began to appear. Depending on geographic zone, environment and climate, animals diversified to adapt. If you remember from our little introduction, we mentioned almost 1,200 species. And that's 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 earliest dinosaur specimens are a far cry from the usual cliché of giant dinosaurs.
The oldest confirmed dinosaurs, which lived 230 million years ago, were saurischians. First of all, there's Saturnalia, a dinosaur whose classification was long debated until 2007, as it includes features of both sauropodomorphs and theropods. It is around 1 to 2 meters long and probably no taller than an adult's knees.
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🎬 Today's program:
00:00 - When it all began...
08:35 - The great dinosaur family, who are they really?
10:39 - Are dinosaurs really gigantic animals?
17:54 - The ancestors of the dinosaurs
23:10 - The Saurischians, dinosaurs with lizard pelvises
27:46 - Ornithischians, the birdbath dinosaurs
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 lives of dinosaurs: between ferocious predators and good parents...
59:50 - How do dinosaurs care for their offspring?
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