0
Why are dinosaurs considered the ancestors of modern birds if they were cold blooded?
Wiki User
∙ 12y ago
Also, some dinosaurs could have been warmblooded.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Were dinosaurs cold blooded?
they are believed to be related to birds according to evolution. Dinosaurs were considered luke-warm blooded because they could survive in the cold and the warm. Though another theory is the evolution with birds, I think this is a good answer.
Are dinosaurs ex stinkend?
Yes, all dinosaurs are extinct. But, their modern-day ancestors, reptiles and birds, live on.
Is dinosaur a reptile or amphibian?
Dinosaurs are considered wartmblooded reptiles. They were bird-like but bigger and unfeathered. They are not amphibians and also differ from the modern cold-blooded reptiles. While they are still considered to be reptiles, recent fossil discoveries suggest that some dinosaurs may have been warm blooded and more closely related to birds; these dinosaurs had light, hollow bones, and may have been covered with feathers.
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.
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.
Did snakes have feet when dinosaurs were alive?
There were ancestors of snakes that had feet during the time of the dinosaurs. But the mere fact that they had feet meant that they would be considered snakes. Instead they were more like modern lizards. The first snakes appeared during the Cretaceous period when dinosaurs still dominated the earth.
Is a T. rex warm blooded?
Unlike the modern reptiles we know and love, most dinosaurs were endothermic (warm-blooded). So, although T-rexes were cold-blooded killers, yes, they were warm-blooded.
What are ornothischian dinosaurs?
They were cretaceous period dinosaurs that are believed to be the ancestors of modern birds.They had semi hollow bones and later in the period even developed the first feathers on the planet.
Why did dinosaurs become extinct and not any other animals?
Most of the dinosaurs of long ago were considered cold-blooded creatures, or reptiles. However, studies have shown that some dinosaurs were warm-blooded. An example is that of the ancestors of birds or horses. The T-Rex is a cold-blooded dinosaur.
Why do some scientist believe that dinosaurs were warm blooded?
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.
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.
Does a comma always go after therefore?
No, a comma does not always go after "therefore." It depends on the sentence structure and how "therefore" is being used within the context of the sentence.
