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- Dinosaurs lived in Alaska and Antarctica. Although these places had no icecaps at the time, they still had cold winters, which a cold blooded animal could not have endured. We know they didn't simply migrate away, because young dinosaurs would not have been able to make such a migration until they were a few years old, and they would have had to survive the winters.
- Birds, which descended from dinosaurs, are warm blooded.
- Dinosaurs show signs of an active lifestyle, which is rare for animals that are cold blooded.
- The growth rate of juvenile dinosaurs more closely resembles that of warm blooded animals than cold blooded animals.
What else can I help you with?
Are dinosaurs repitles?
Yes. Dinosaurs are a group of archosaurian reptile. (Other archosaurs include crocodiles and possibly the pterosaurs.) When people think of the word reptile they think of cold blooded sprawling creatures like lizards and crocodiles. Many are, but it's generally thought that dinosaurs were more probably warm blooded reptiles. Birds are also a type of theropod dinosaur so technically they to are also reptiles. Birds are warm blooded.
What are dinosaurs warmblooded vertebrates called?
No, they were not. There were many other warm blooded species before them. I'm not sure of specific names, but I know that birds were along much longer than the dinosaurs, and birds are warm blooded. Let me clarify from above. According to the currently accepted Evolution Theory, birds evolved from dinosaurs. Birds are warm blooded but dinosaurs, as far as the scientists can tell, were cold blooded.
How might dinosaurs have been like birds and unlike reptiles?
Many dinosaurs had feathers as their main body covering, rather than scales and evidence suggests that at least some dinosaurs were warm-blooded. Like birds, dinosaurs walked with their legs directly beneath their bodies while the legs of modern reptiles sick out to the sides.
Why do scientist think the dinosaurs went extinct?
One reason is that there were a lot of fossils in many layers of rock and then suddenly, there are a lot fewer. Also, there don't appear to be many dinosaurs alive today. So, they went extinct. Do you really mean "how" did the dinosaurs go extinct?
How would a drop in available light impact the dinosaurs?
During the time of the dinosaurs a drop in light would cause many plants to die and also many dinos to freeze due to the fact that they were cold-blooded.
Was t-rex cold blooded or warm blooded?
It is not certain, as we have only fossilized bones which tell us little about dinosaurs' soft tissues and organs which we would need to determine warm-/cold-bloodedness, but generally assumed that dinosaurs were, like modern reptiles, cold-blooded. However, it has been recently discovered that at least some dinosaurs had live births, which is very surprising because it is most definitely not a trait of modern reptiles (modern reptiles lay eggs that hatch and do not have live births); this may lead to increased doubt over whether dinosaurs had many traits in common with modern reptiles, including being cold-blooded. Two groups of warm-blooded animals, mammals and birds, are descended from dinosaurs.
Why do some scientist believe that dinosaurs were the primogenitors of the modern birds?
Scientists have found a number of fossils of theropod dinosaurs with anatomy remarkably similar to that of birds. Many dinosaurs are now known to have had feathers.
How are pandas being endangered bad for the world?
many scientist need to test and like do the same they did to the dinosaurs
Were dinosaurs cold or warm blooded?
Scientists used to believe that dinosaurs were cold blooded, like modern reptiles. However, the fact that birds clearly evolved from dinosaurs and the fact that birds are warm blooded put that belief into question. Examination of the growth rings in dinosaur bones shows a steady growth rate, which is indicative of warm bloodedness.
Are caterpillars cold blooded or warm blooded?
yes caterpillars have a heart but i don't know how many.
How are reptiles different from dinosaurs?
Dinosaurs were a subset of reptiles but they were different from any modern reptile. Modern reptiles are cold-blooded animals with a fairly slow metabolism. They walk with their legs stuck out to the side except for snakes and some lizards which have no legs. They are covered in scales. By contrast dinosaurs walked with their legs erect directly beneath them. There is evidence that many dinosaurs were warm blooded and had active lifestyles. Some are now known to have been covered in feathers rather than scales. A number of dinosaurs such as velociraptor were much more like birds than like modern reptiles.
Were dinosaurs coldblooded?
They were not. As first shown by world-famous paleontologist Robert Bakker, Dinosaurs were warmblooded. The rapid evolutionary patterns in dinosaurs, as well as their life span, exctinction, and niches in ecosystems all point to their being warmblooded, whereas there is absolutely NO evidence to support their cold-bloodedness. It is simply mamalian bias, stemmed from a massive superiority complex that humanity is the best animal ever, and thus mamals are better than all other forms of life. The evolutionary trends in a warm blooded animal are to have a rapid diversification of species. The trends in cold blooded animals are to evolve very, very slowly. For example, Crocodiles and turtles haven't changed much in tens of millions of years. Dinosaurs, obviously, follow the warm blooded pattern. Warm blooded animals have very short lives. Most mamals have lifespans averaging 30 years or less. Humans have inreased this by using medicine to increase lifespans, but the natural lifespan of a human is about 40 years. Cold blooded animals, like tortises and crocodiles, live far longer. The natural lifespan of the Galapagos Tortise exceeeds even the improved lifespan of humanity, generally living for 100+ years. Dinosaurs seem to have had shorter lifespans, in coherency with their warm-bloodedness. As everyone knows, dinosaurs are extinct. Many people have wondered why all of the dinosaurs died out during the mass extinction at the end of the Crectatious (spelled wrong, I know), but almost no crocodiles, turtles, or other reptiles died out. This is because dinosaurs were warm blooded. Warm blooded animals, history shows, are always harder hit by extinction events, and more likely to go extinct, than cold blooded ones. Warm blooded animals need to consume large amounts of food to sustain their higher metabolisms, and so cannot survive as long in adverse conditions as cold blooded animals. The dinosaurs, because they were warm blooded, could not hibernate, scrape along, or otherwise weather out the extinction event and so died out, whereas the crocodiles and turtles merely went to sleep for a few months, surviving because of their low, cold blooded, metabolism. Lastly, the roles of large land predator and large land herbavore, as well as all other dominant roles in the food web, were held, during their time, by dinosaurs. Cold blooded animals, because they are slow and cannot sustain long periods of activity, fulfill the roles of small and, occasionally, medium predator, and small herbavore. Because warm blooded animals can sustain higher levels of activity, and stay active for longer periods of time, they tend to dominate the large predator and herbavore roles. Dinosaurs dominated these roles completely and so they are obviously warm blooded. Dinosaurs, as shown above, were warm blooded. All evidence points to this, and there is no evidence that dinosaurs were cold blooded.
