På den anden side har jorden haft det landgående tandsæt; "fuglen" T. Rex:
Apr. 25, 2008, Molecular Analysis Confirms Tyrannosaurus Rex's
Evolutionary Link To Birds:
http://www.sciencedaily.com/releases/2008/04/080424140418.htm
Citat: "...
molecular analysis of a shred of 68-million-year-old Tyrannosaurus rex
protein -- along with that of 21 modern species -- confirms that
dinosaurs share common ancestry with chickens [høns], ostriches
[strudse], and to a lesser extent, alligators.
....
North Carolina Museum of Natural Sciences discovered soft-tissue
preservation in the T. rex bone in 2005
....
The current work by Organ and Asara suggests that the extracted protein
from the fossilized dinosaur tissue is authentic, rather than
contamination from a living spe-cies.
...."
2005, HEADLINE SCIENCE: Dino Discovery: Scientists see the softer side
of Tyrannosaurus rex:
http://web.archive.org/web/20061111162022/www.calacademy.org/science_now/headline_science/T-rex_soft_tissue.html
Citat: "...
A scanning electron microscope revealed that the dinosaur blood vessels,
which are 70 million years old, are virtually identical to those
recovered from modern ostrich bones.
....
Does this discovery of soft dinosaur tissue mean that scientists will
soon be able to clone a Tyrannosaurus rex? Probably not – most
scientists believe that DNA cannot survive for 70 million years. Then
again, before this discovery, most scientists believed that soft tissue
could not survive for 70 million years either.
...."
hilsen
Glenn