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When the dinosaurs became extinct, a hole remained in the trophic chain. The mega-predators disappeared, equivalent to the lions, tigers or wolves of today. Some mammals and reptiles competed in the highest levels of this chain, but in some places it was the non-flying birds that reigned and subdued the rest of living beings. Gastornis Recreation It is a group of birds with no current equivalent. Its presence is documented on all continents except Antarctica, but like its predecessors, the dinosaurs also became extinct. The skull in all cases stands out for its large size; the very robust and sharp...

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I think that to present this shark of epic proportions, it is more than appropriate to resort to a photomontage that circulates on the internet. It is a white shark that has been increased in size with photoshop and fits exactly to the size that could reach a Carcharodon megalodon.   The photograph speaks for itself, the mouth of the Carcharodon megalodon has the size of a circular door full of teeth, the trip would be only one way and without the need to be chewed.   The images of this animal do not need words to explain them and...

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To reconstruct the appearance of dinosaurs, paleontologists depend on fossils and imagination. Sometimes that "creative" part is free and in most cases the inspiration is sought in the current creatures that populate our planet. Similarities are sought and those traits that do not remain fossilised are applied.   Reconstruction of the Caihong juji   Color is one of those factors free of interpretation that sometimes takes as an example the current reptiles and birds. Fortunately, sometimes the miracle exists and an exceptional fossilisation gives enough clues so that paleontologists can approach the image that the extinct animal had in life....

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                           Adult female, "joe" and Parasaurolophus egg. In 2009, from the harsh sediments of southern Utah, in the United States, an enigma arose. The skeleton of a small herbivorous dinosaur, 180 cm long, posed a challenge for paleontologists: It was a dwarf duck dinosaur? or it was a young specimen of a known species? To solve the enigma, the skeleton, exceptionally preserved, was submitted to several analyzes. The very fine cross section of one of the bones determined that the dinosaur had died during its first year of life. In...

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During the first years of the 19th century in Louisiana, fossilised giant bones became very popular. They belonged to a prehistoric creature, but that did not matter to many of the locals who used those bones as improvised furniture. Some of those fossils were sent to an important anatomist who studied and baptised the animal. He thought it was a huge marine reptile and called it Basilosaurus, which in ancient Greek means "reptilian king".   Illustration of the "giant snake" skeleton.   The abundance of giant fossils was well known and Albert Koch saw the opportunity to do business. He recovered...

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