from, http://discovermagazine.com/1995/may/dinosaurmine510 look at, http://www.xammon.com/Community/World_News_Archives/~S/Strange_Stuff/(2005-03-25)-Scientists_Recover_T_Rex_Soft_Tissue.html and http://www.windsofchange.net/archives/009738.php To get as close as possible to what the ancient gene would have looked like, Woodward derived a consensus sequence--a sequence consisting of the 112 bases that all nine fragments shared, and at each of the other positions, of whatever base was most common among the nine. Then he and his colleagues compared that sequence with the cytochrome b sequences from living animals. While the ancient DNA was unlike that of anything alive, it turned out to be more similar to the DNA of mammals--in particular, whales- -than it was to birds, reptiles, or anything else. That result is surprising indeed: dinosaurs were reptiles, after all, and most paleontologists think they were the ancestors of birds. And in fact, many paleontologists are skeptical that Woodward has isolated dinosaur DNA at all. Some flat out don't believe that it's possible to recover 80-million-year-old DNA. Others, like Rob DeSalle of the American Museum of Natural History, who studies DNA from insects preserved in amber, grant that Woodward's DNA might be that old but doubt it's from a dinosaur. I am willing to believe they have gotten ancient DNA out of bone because the way they've described their experiment seems adequate for obtaining DNA, says DeSalle. But they have simply not shown that they have dinosaur DNA. There is no way. I don't think there is enough information in the small sequence they have to do this kind of analysis. If they got a lot more sequence and showed that the DNA came out as either the sister group to reptiles or the sister group to birds, then that would convince me. Says Woodward: Some people have said that if this sequence is not more closely related to birds, then it isn't a dinosaur sequence. Well, I don't think that is a good reason to throw out the sequence. I don't believe that all dinosaurs necessarily had to be related to birds. The dinosaurs were on the Earth for 200 million years, and some certainly had enough time to diversify as far away from birds as they moved from reptiles and mammals.