that is amazing.... I did not know they found soft tissue.
from national geographic...
http://news.nationalgeographic.com/news/2005/03/0324_050324_trexsofttissue.html
"The team made a plaster jacket to get part of the fossil out, and it was too big for the helicopter to lift. And so we had to take the fossil apart.
"In so doing, we had to break a thighbone in two pieces. When we did that, it allowed [Schweitzer] to get samples out of the middle of the specimen. You don't see that in most excavations, because every effort is made to keep the fossil intact," said Horner, a co-author of the study.
A certain amount of serendipity lead to the discovery.
Because the leg bone was deliberately broken in the field, no preservatives were added. As a result, the soft tissues were not contaminated.
I found this interesting later in the later in the article...
Schweitzer's background is in biology, and she performed a number of tests on the fossils that are common medical practices today.
The paleontologist and her colleagues removed mineral fragments from the interior of the femur by soaking it in a weak acid. The fossil dissolved, exposing a flexible, stretchy material and transparent vessels.
The vessels resemble blood vessels, cells, and the protein matrix that bodies generate when bones are being formed.
"Bone is living tissue, is very active tissue, and has its own metabolism and has to have a very good blood supply," Schweitzer said.
"So bone is infiltrated with lots and lots of blood vessels in its basic structure. When bone is formed, it's formed by cells that are specific for bone, that secrete proteins like collagen and form a matrix."
Further chemical analysis might enable the scientists to answer long-standing questions about the physiology of dinosaurs. For instance, were they warm-blooded, cold-blooded, or somewhere in between?
If protein sequences can be identified, they can be compared to those of living animals. This might allow a better understanding of how different groups of animals are related.
The find may potentially change field practices, perhaps by encouraging more scientists to reserve parts of fossils for cellular and molecular testing.
Quote from fhl:
Lol, back to the head in the sand lib arguments that dinosaurs are sixty five million years old and only "crazy" people dispute that.
Even liberal wikipedia admits that dinosaurs are among us today. Birds are dinosaurs.
And t rex who supposedly went extinct 65 million years ago? A North Carolina State scientist found soft tissue within a t rex femur bone a decade ago. That can't happen according to science. LOL And no scientist can dispute it with any sound evidence. All they can come up with are idiot theories that have no basis. Sort of like the "multi universe" argument used by faux scientists who can't explain why their own crackpot science falls devastatingly short of explaining the universe.
Science all seems rather gay to me.