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Why do some scientist believe that dinosaurs were warm blooded?
Wiki User
∙ 11y ago
There are a number of indicators. Some dinosaur fossils show indications of an active lifestyle that a cold-blooded animal is unlikely to have. One dinosaur was found to have had a four-chambered heart, which is also found in mammals and birds, but not in modern reptiles.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoSome scientists believe that dinosaurs were warm blooded because their bone structure was similar to that of modern mammals.
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How did dinosaurs start to egsist?
No one knows exactly how dinosaurs started to exist, but some people believe that they evolved from single celled organisms that lived in the oceans. Some scientist believe that dinosaurs might be related to lizards or to birds.
How huge did dinosaurs grow?
Not all dinosaurs are that tall some are short or some are tall. But Dinosaurs grew up to 87 ft. tall scientist still believe that there might be even more taller dinosaurs.
Are dinosaurs coldblooded?
Some dinosaurs were hot-blooded like Dromaeosaurus while others were cold blooded like Ouranosaurus,Stegosaurus,and Spinosaurus.
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.
Is a armadillo lizard warm blooded?
Iguanas are cold blooded because they are in the lizard family. Lizards and iguanas live in the desert and the tropics so if they were warm blooded they would be to hot in the harsh hot weather but being cold blooded keeps them cool.
What dinosaur is cold blooded vertebrate that usually lays eggs?
All dinosaurs, including birds, which are considered a group within the clade Dinosauria, laid eggs.It is unknown whether dinosaurs were warm blooded or cold blooded. Possibilities include:All dinosaurs were warm blooded, and none were cold bloodedAll dinosaurs were "lukewarm" blooded, meaning they had some control over their body temperatures, but not as much as modern warm blooded animals, like mammals or birds.All dinosaurs were cold blooded.Some types of dinosaurs were warm blooded while others were lukewarm or cold blooded.The growth rate of dinosaurs as revealed by their fossilized bones and the fact that their anatomies suggest very active lifestyles, which cold blooded animals would not be able to maintain, among other pieces of evidence, strongly suggest that at least theropods were warm blooded, if not all dinosaurs. Theropods were three toed, bipedal dinosaurs, most of which ate meat. Examples includes T-rex, Velociraptor, Allosaurus, Troodon, and Ornithomimus.In other words, it appears most likely that all dinosaurs laid eggs, but they were warm blooded.
Are Dinasours Cold-Blooded?
Some dinosaurs MIGHT have been cold-blooded (its possible that some herbivores were), but most were almost certainly warmblooded like us.
Do dinosaurs have could or warm bould?
It is unknown whether dinosaurs were warm or cold blooded. Evidence suggests the former, because some lived in cold climates year round, they grew at a similar rate to warm blooded animals, and their descendants, birds, are warm blooded.
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.
Will dinosaurs come back?
Some people believe that dinosaurs will come back in their life time. Some people believe that they will come back after there life time. Some people believe they will be cloned. Some people believe, that they will never come back. What ever you believe, you can believe. But I believe that dinosaurs will not come back ever, but will be cloned outside of my lifetime. - Christopher250 -
What theories about dinosaurs do paleontologists discuss?
Some of the major topics paleontologists discuss include: How did dinosaurs die out? Were dinosaurs warm blooded? Which theropods had feathers and which ones only had scales? How active were dinosaurs? How fast could they run?
What is one dinosaur fact?
Most dinosaurs are reptilian, with scales. However it is possible that some dinosaurs are warm blooded. Plesiosaurs, Ichythosaurs, Mosasaurs, and Pterosaurs aren't dinosaurs; they're just related to them.
