Find solution
Why were dinosaurs so massive in size?

Dinosaurs reptile, amphibian, mammal??? if dinosaurs turned to birds(not that i believe that, but) why do Evolution scientists not beileve them to have been mammals. its much easier to change body shape and size vs. warm blooded vs cold blooded.

  • Answer:

    the question is a little off...not all dinosaurs were believed to turn into birds...if that were the case we would not have lizards, snakes, alligators, crocodiles etc...some evolved into birds...not all. Also at the time of dinosaurs there were other animals, not all species on the planet were reptile. There were mammals, insects, sea life, etc. Those dinos that were cold blooded died off for the most part, those that were able to adapt to bird-like status or at least shrink in size considerably were able to survive. Mammals like the wooly mammoth adapted to our modern elephants..they weren't directly descendant of dinos, mammoths were around then too. But take a bird, strip it's feathers off and compare it to a dino..very similar..in fact it's estimated some dinos had feathers back then. Now take a mammal and look at it with no hair..it doesn't resemble a dino at all.... So you tell me, which would be easier to change..body chemistry or the entire body?

guardian at Answerbag.com Visit the source

Was this solution helpful to you?

Other answers

Basically, because of the similar bone structures of dinosaurs and birds. That and the 'missing link' fossils that have been found- dinosaurs with feathers.

lizardqueen22

The diagnostic features of being mammals include having hair and giving live birth. We know that dinosaurs laid eggs and had scales rather than hair. Indeed, is now appears that some dinosaurs may have had feathers. On the other side, we know that there were mammals in alongside the dinosaurs. While it is easy to change body size, and to some extent to stretch and compress body parts, it is much harder to change the way in which parts are fitted together - for example, the skeleton. The skeletons of birds strongly resemble those of the dinosaurs from which they are believed to be descended, and are very different from those of mammals, either now or the mammals contemporary with dinosaurs. There is also evidence that feathers evolved from scales. I don't think we can make a good judgment on the relative difficulties of changing from coldblooded to hotblooded versus major skeletal reorganization. But I can see that even a moderate level of thermal control would be of great value to smaller animals of all sorts in more variable climates. Therefore it would not surprise me if it evolved several times. We know that eyes, another broadly useful body part, evolved at least eight times.

Im Alec has abandoned this account

There is no evolution,This rock was Terra formed to become one of the many prisons to keep us earth bound souls from escaping.That is why the dinosaur was wiped out some adapted other didn't it. was only billions of year after that man was stranded here to fend for himself

Terance McKenna

Therapods were actually a combination, not cold blooded OR warm blooded. They used an 'on demand' mechanism to get the best of both worlds.

LarryH54

Very few people even considered their relation to mammals before Jurassic Park was made. The movie crew actually hired a paleontologist to study dinosaurs before making the movie.

Siyanor

Related Q & A:

Just Added Q & A:

Find solution

For every problem there is a solution! Proved by Solucija.

  • Got an issue and looking for advice?

  • Ask Solucija to search every corner of the Web for help.

  • Get workable solutions and helpful tips in a moment.

Just ask Solucija about an issue you face and immediately get a list of ready solutions, answers and tips from other Internet users. We always provide the most suitable and complete answer to your question at the top, along with a few good alternatives below.