Yellow cedar trees are found in the mountains of Washington, British Columbia and Alaska. They can grow for over 1,000 years!
Dinosaurs 'more like cows' than giraffes
Dinosaurs 'more like cows' than giraffes New studies suggest than dinosaurs did not eat
leaves from tall trees like giraffes do, but actually ate plants
off of the ground. Kent Stevens of the University of Oregon and
Michael Parrish of Northern Illinois University believe that the
bones of dinosaurs such as the brontosaurus and the diplodocus
would have worked best at a slightly downward angle and they
probably fed like long-necked cows. Steven Spielberg pictured these
dinosaurs as tree-grazing creatures in the movie Jurassic Park, but
as scientists have learned more about the dinosaurs' probable
biology there remains questions about how the animal's circulatory
system was able to pump blood to an elevated neck which could have
been up to 20 feet long. Researchers are now using a computer model
of a dinosaur's neck which shows a limited range of motion that is
more side to side than up and down. Research shows that the maximum
height that a dinosaur could have lifted its neck would have been a
little bit above the height of its back. It is also believed that
the prehistoric beasts could reach farther down than common cattle
so that they could swing their necks across river banks to feed on
the other side. 1 MAY 1999
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