Word: dinosaurs
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...Dinosaur-Bird Connection...
...theory that birds are the closest living relatives of dinosaurs has received more confirmation from some baby maiasaur bones found in Montana. As reported in Science, the evidence comes in the form of fossilized growth plates -- disks of cartilage found at the ends of bones -- which act as a sort of scaffolding around which new bone can grow. The plates are found in mammals, reptiles and birds -- but the structure of the dinosaur plates was clearly birdlike...
...leave not knowing whether Cuba can safely make the journey back from a failed communist state, but the country is already on that road, like it or not. "People say we are a dinosaur," says Juan Antonio Blanco. "But look at the map. Cuba is shaped like a crocodile. And like the crocodile, the Cubans have learned to adapt. That's why we're still around...
...experiment at the center of the controversy seems, in many ways, unworthy of the hoopla. It is not the Jurassic Park-type cloning most people think of, in which genetic material from a mature individual -- or DNA from an extinct dinosaur -- is nurtured and grown into a living replica of the original. This is far beyond the reach of today's science. There is a vast difference between cloning an embryo that is made up of immature, undifferentiated cells and cloning adult cells that have already committed themselves to becoming skin or bone or blood. All cells contain within their...
...dinosaur burial ground, now a dry, undulating pasture of sage and buffalo grass just below the North Dakota border, was once a subtropical floodplain, where dinosaurs roamed amid palm trees and ferns on the edge of a dying inland sea. One day a mature male T. rex, weighing up to five tons and measuring nearly 40 feet in length, died in a silty washout. At least two albertosaurs, sharp-toothed scavengers about half T. rex's size, fed on the carcass, leaving a few of their teeth behind. Within months a river overflowed its banks and swept the bones away...