Does anyone here actually think that dinosuars - reptiles, turned into birds which are another species altogether? I had a theory which I said in another post that maybe they adapted to water and are living in the unexplored deep of the ocean. Here's a quote from the other post so I don't have to write it out again.





Opinions people?

There WERE dinosaurs living in the ociean. And only some dinos evolved into birds. And the africans don't have to know what the brontosoar looks like, the auther does!

You are referring to the Mokele-Mbembe. The main problem with these types of stories (and they are repeated with every one you come across) is that no matter what sort of previous image the tribe had of its monster, it invariably manages to find a dinosaur that resembles it.

Monster tend to be archetypal. They are a collective fear of the masses. It's very similar to the ink blot tests, in which one can find almost any sort of image that one wishes (which is why they have fallen into disreput as a psychotherapy tool)

Yeah, I know it probably wasn't but I just thought I'd add it anyway.

Nigel,

I know there were dinosaurs in the ocean, the Plesisaurus was one of them lol, amongst others, but I meant as in all or most of them changing. Though I could probably say flying ones like Pterydactls (no idea of that's spelt right) probably turned into birds, bats, kinda resemble them...and maybe vultures. Triceratops, and the like kinda look like Rhinos. I just think birds are kinda limited.

I mean Horseshoe crabs still exist, and they I thought, were until recently, thought to be extinct. They were around since that time, and they found they have literally, blue blood. They don't really look like crabs, but you can kinda see the resemblance. I don't see where the resemblance between a T-Rex and a pigeon are.

I thought the bird thing was just a theory anyway?

Actually, no "true" dinosaur ever flew or lived in water. They are a different type and not "saurian". It is most definately true that birds are evolved from dinosaurs. What else would they come from at the time? Mammals? No, no hair. But dinos? Perfect! The smaller dinosaurs, perhaps a member of the raptors, grew feathers for insulation, and eventually started using them to glide a bit when jumping off of something, and soon enough, sustained flight.

Feathers on a bird are actually a form of scales, and birds feet literally are scaled. Some of the raptors had hollow bones, like birds. Some even had feathers (we know this becuase of a fossilized impression). We have to, therefore, assume that they evolved from the dinosaurs. Looking at my african grey, Darwin, I can still see some saurian in him. In his stance, and the reptilian quality of his eyes. There is no doubt in my mind that they are descendents of the dinos.

Which diosaurs do you feel would have had the greatest potential of evolving into the birds of today?

I guess it is possible. Look close at a featherless bird and you will see a similarity between certain dinosaurs and the bird itself. Plus there is the beak factor. Then again, squids have beaks....

Squids don't have scales or reptilian brains...

Yes birds probably evolved from raptors. But rinos didn't evolve from tricerotops. Rinos are mamals. And same with bats. they all had a common ancestor that scurried around the feet of t-rex. Good theory though.

Of course their a different species, but new species evolve from old ones. And if its about different family groups, then you must remember birds and mammals both evolved from reptiles, which in turn evolved from ampibians, which evolved from fish.

Birds have a lot of similaries with dinosausers (hips for instance, all dinos like bird have their legs under their bodies, all other reptiles have them to their side). Plus, there are are examples like Arpteroxtrix (or however you spell it) and recent fossilied imprints of raptors suggest they had feather crests on their heads.

Also the 5 million years after the extinction of the dinos was the only time in history when birds controlled the world, where did they come from? The dinosaurs is the most logical answer.

I wasn't suggesting they do.

Plus as far as birds go (and as far as we know), neither do birds have scales or repitial brains, but we are still creating a topic debating as to if birds eveolved from reptiles.

I wasn't suggesting that you were suggesting they do.

Birds do have scales. Their feet are scaled and feathers are just a form of elongated scales. Their brains are also very similar in design to reptiles, just a lot more intelligent.

Ok then, just thought you thought I was suggesting it!

Yes, they do have scaled legs, but, they do not have scaled bodys like, for example, a crocodile. However, obviously some ancient flying creatures did. It seems likely that some evolution occured.

.....Godzilla!!!!!!!!!!!!!!!!!!!!!!!! Thats were he came from! ...

They are scaled! I told you, the feathers are scales! Just a different form, the same as a rhinos horn being mad of hair. Feathers are scales.

I am not disputing that feathers are not a form of scale. I am simply stating that birds are not coated in crocodile scales!

i have seen a show on discovery about a species of bird that is born with a claw on its wing, this claw alows the bird to climb around in the trees till they can learn how to fly.

i highly believe that birds evolved from dinos, the have you ever seen a bird before it fledges for the first time, looks very much like a dino if you dont look at the wings.

Yup, baby birds do look like dinosuars. My mum owns hundreds, and I said the same thing the other day when I saw her holding a baby parrot.

I have also heard of that bird with the claw, I can not remember it's name though - perhaps one of us should do a Google search.

There was an article in "The Sun", concerning the dino-bird evolution, and it showed an obviously manipulated image portraying what a feathered T rex may have looked like.

i found a bird thats born with claws on the wings, but i also read that more then one kind of bird is born with the claw
the bird i found was called the white bellied go away bird

I think current theory is that dinos weren't reptiles. They were warm blooded like birds. I think birds did come from a form of dino.

What about Kangaroos? They look more like a smaller and furrier version of a T-Rex than any bird I've seen. I don't know, maybe some, like raptors, turned into birds, but, I don't think all of them did. Where did all the other animals come from otherwise?

And the Brachiosaurus type look more like a giraffe, I'd say. Someone on here said birds AND mammals came from reptiles, so it's just as possible. The bone structure may be similar to birds, but were talking about evolution here, they could have changed in alot of ways.

I don't know how feathers are scales though, I mean we still do have reptiles, and they still have scales. At least some of those reptiles had to have come from dinosaurs. Like the origional crocodile was as long as a bus, and it didn't look much different.

i dont think it was implied all dinosaurs turned into birds, just that birds came from some sort of dino,
and as for the brac looking like a giraffee, thats just evolution taking the same route to get food, and as for mammals coming from reptiles, im pretty sure its that they both came from a similar ancestor (look at me talking all scientific when i cant spell for crap ) anyways, if you look at the material scales are made of and the material feathers are made ofits virtually th same, just different shape, just like was mentioned earlier, rino horns are mad of hair, and scales are almost the same thing as fingernails

[QUOTE]What about Kangaroos?[QUOTE]
Kangaroos are marsoupals (sp). They give birth to live babies and feed them milk in their pouch. That is a far-cry from a dino that laid eggs and cared for their young in nests.

a good example of evolution are the MONOTRENES, the duck-billed platypus , and the echidna, both of which lay eggs, and once they hatch they keep the baby in a pouch like a marsupial, but they only have one hole, for urine feces and reproduction, the platypus males even have spurs on their back legs and venom glands, not deadly, but definately not fun to get stuck.

Yes that is true. I have read about that also. I saw an image once of a "feathered" T rex in some news article.

Only the smaller dinosaurs had a chance if being warm-blooded. Consider this:

A warm-blooded creature needs a substantially faster metabolism then does a cold-blooded one. For instance, some crocodiles need eat only once in a year, a feat mammals can't even come close to. A large dinosaur that was warm-blooded and on land would never get enough food to fuel itself. And besides, there was no evolutionary reason for it, when the dinos came around. Only drawing to the end of the Cretaceous era did a need for it come about. Only the smaller dinosaurs, such as a Troodon, Techisauros or Velociraptor would have a chance of being warm-blooded.



If the T-Rex was, hypothetically, warm-blooded, then because of it's size, it would have trouble losing heat, not retaining it. The larger you get, the less surface area, in comparison to mass, you have. Less places to get rid of heat and more places producing it. The only possible war for such large animals to exist, larger then anything else on land ever, would be to be cold-blooded. The feathers may have developed on Raptors as a sexual attraction, to stay warm (if cold-blooded), and then developed into warm-bloodedness. This is what happened with mammals. A certain ancestor of ours, was a reptile with "hair" or the precursor to true hair. This let us survive long enough to become warm-blooded.