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horned or sporting antennae, roamed the Earth's seas in the Paleozoic era before the dinosaurs and were one of the most complex living things that existed to that point. At the Houston museum, visitors will be treated to one of the largest displays of trilobite fossils in the world, and Bakker rubs his hands with enthusiasm at the thought of young children pressing their nose to the glass to get a glimpse or reaching a tiny finger out to touch an impossibly old piece of rock.
• "Dinosaurs are the jumper cables to the human mind. Kids can't curb their enthusiasm when they're in a hall of dinosaurs and mammoths and mammoth hunters and trilobites and giant fish that could chomp up a shark. These natural objects in motion and context make kids want to read, you can't stop them from reading and thinking," said Bakker, who in the 1970s was one of the first to argue the massive prehistoric beasts were warm-blooded and further challenged scientific thinking in

his 1986 book "The Dinosaur Heresies."
• For scientists, and the museum community, the exhibit offers unique objects, including the only Triceratops skin found to date, a specimen that showed they had been wrong in believing the horned vegetarians had smooth skin. In fact, it had bristles, Bakker said.
• Then there is the museum's skeleton of a T. rex, one of only two with complete hands, two long fingers and one stub, which Bakker believes could be proof this massive, feared

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