Antwort Could dinosaurs exist now? Weitere Antworten – Is it possible dinosaurs still exist
The non-avian dinosaur part of the evolutionary tree went extinct about 66 million years ago, likely due to a catastrophic event such as an asteroid impact, leaving no real dinosaurs alive today except for their bird descendants.Many of them probably could survive today. Dinosaurs ruled the world for 150 million years, and endured hot and cold spells, volcanic eruptions, and changing sea levels. There is nothing about today's world that would be fatal to them.It is therefore entirely possible for prehistoric genetic material to survive for up to one million years. But the big dinosaurs departed this life some 66 million years ago. So the prospect of finding enough viable DNA material in what remains of them today is therefore vanishingly remote.
What is the closest thing to a dinosaur alive today : While birds are the closest living descendants of dinosaurs, crocodilians are their closest living relatives, highlighting the diverse and complex tree of life that connects modern species with their ancient ancestors.
Will dinosaurs return in 2050
The Adam Smith Institute, a British think tank, has released a new report predicting what life will be like in 2050. According to the report: "Several species of dinosaur will be recreated, making their appearance on Earth for the first time in 66 million years.
Is a crocodile a dinosaur : Both crocodiles and dinosaurs are members of the group 'Archosauria. ' (Ruling reptiles. ' Pterosaurs were also part of this group. Crocodiles, pterosaurs, and dinosaurs are all different groups within the archosaurs, so crocodiles are not dinosau…
There were no Polar Ice Sheets. Instead Antarctica was covered in forests where T-Rex. And other dinosaurs could have roamed flowering plants were thriving.
The atmosphere of the Earth 80 million years ago was discovered to have 50% more oxygen than modern air. Brenner and Landis found that for all gas samples taken from amber 80 million years old the oxygen content ranged between 25% to 35% and averaged about 30% oxygen. Cretaceous air was supercharged with oxygen.
Is Jurassic Park theoretically possible
Ultimately though, we need intact DNA to resurrect species. So, although scientists have made a lot of progress, the prospect remains in the realm of science fiction. All data from fossils and experiments to date suggests that DNA is simply unlikely to survive for tens of millions of years.According to a news release from the Chinese Academy of Sciences, the femur cells contained preserved nuclei and chromatin fragments that could potentially hold preserved dinosaur DNA. The scientists discovered this by staining the extracted cells with hematoxylin, a chemical that binds to cell nuclei.Most dinosaurs went extinct. Only birds remained. Over the next 66 million years, birds evolved in many ways, which enabled them to survive in lots of different habitats. Today there are at least 11,000 bird species.
He and all of the other researchers, however, suspect that more recent dinosaurs even closer to the K-T boundary will be found in the future. For now, however, the 65-million-year-old Triceratops is the world's last known surviving dinosaur.
Have we ever found dinosaur DNA : Although it's too late to find dino-DNA, scientists recently found something almost as intriguing. They discovered DNA fragments in the fossils of Neanderthals and other ancient mammals, such as woolly mammoths.
What animal is closest to a dinosaur :
- Crocodiles. Crocodiles are the closest living relatives of dinosaurs.
- Birds. Birds are another group of animals that are closely related to dinosaurs.
- Snakes. Snakes are another group of reptiles that are closely related to dinosaurs.
- Lizards.
- toirtoises and turtles.
Is a komodo dragon a dinosaur
It is a reptile, a not-to-distant relative of the snake; both animals share a forked tongue. Dragons can reach 10 feet in length, and weigh as much as 300 pounds. Though it resembles one, the Komodo is not a direct descendant of the dinosaurs. They do, however, share a common ancestor from some 300 million years ago.
There's little about 100 million years of dinosaur history to hint they'd have done anything radically different if the asteroid hadn't intervened. We'd likely still have those supergiant, long-necked herbivores and huge tyrannosaur-like predators.Studies of air bubbles trapped in amber show that the atmosphere of the Cretaceous may have had up to 35 per cent oxygen, compared to today's 21 per cent. For T. Rex this would feel like he was at the base camp of Everest. In such thin air dinosaurs would be too breathless to chase hapless tourists.
Could humans survive Jurassic oxygen : They might survive, but only just. The oxygen level was half today's level while CO2 was elevated 6-fold.