Jurassic Park db forum

I'm sure they could, maybe they wouldn't be as large or they would have larger lungs or something. This is all assuming that there was more oxygen in the atmosphere which I don't believe at all.

how could they evolve that easily to this new environment .you might know that one of the theories put forward for dinosaurs extinction was its inability to adapt.so if people are going to clone dinosaurs i dont think it is going to be all that easy provided that the oxygen percentage was higher during the mesozoic era.

Dinosaurs could adapt quite easily to just about anything, they were around for 160 million years and all of a sudden they can't adapt anymore when you have quite generalist species still alive, I just don't buy that. It's not evolution yet it's a phenotypic change not genotypic because it takes a while for the genotype to stabilize to that phenotype.

Tyrannis wrote:It's not evolution yet it's a phenotypic change not genotypic because it takes a while for the genotype to stabilize to that phenotype.

Are you implying that the phenotype dictates the genotype?

No, I'm saying that if something causes a phenotype change (like we'll say living on mars and people grow much taller than they would here) and it's something that happens consecutively through the generations the genotype will eventually catch up to it. Just like if there was 30% O2 in the dino era and we cloned them they would probably grow larger lungs which is just the outside changing not the genes themselves but if they breed enough I wouldn't be surprised if the genome stabilized it at that size. Genotype dictates phenotype unless the phenotype responds to something before the genotype can.

so are you saying that if an organism which lived millions of years ago is suddenly brought back to life in an environment hostile to it the organism will grow organs that are more adapted to this environment .

No not grow organs, they'll be used more they and they get bigger, like say the lungs. They'll be the exact same design just probably bigger and more barrel shaped because they need to take deeper breaths to get as much oxygen.

has this phenomenon happened before.

I don't know, what proof would we have of it? as far as fossils are concerned it would all be the same.

why didnt they adapt to the environment 65 million years ago