Jurassic Park - Crichton Michael. Страница 23

They moved into a green tunnel of overarching palms leading toward the main visitor building. Everywhere, extensive and elaborate planting emphasized the feeling that they were entering a new world, a prehistoric tropical world, and leaving the normal world behind.

Ellie said to Grant, "They look pretty good."

"Yes," Grant said. "I want to see them up close. I want to lift up their toe pads and inspect their claws and feel their skin and open their laws and have a look at their teeth. Until then I don't know for sure. But yes, they look good. "

"I suppose it changes your field a bit," Malcolm said.

Grant shook his head. "It changes everything," he said.

For 150 years, ever since the discovery of gigantic animal bones in Europe, the study of dinosaurs had been an exercise in scientific deduction. Paleontology was essentially detective work, searching for clues in the fossil bones and the trackways of the long-vanished giants. The best paleontologists were the ones who could make the most clever deductions.

And all the great disputes of paleontology were carried out in this fashion-including the bitter debate, in which Grant was a key figure, about whether dinosaurs were warm-blooded.

Scientists had always classified dinosaurs as reptiles, cold-blooded creatures drawing the heat they needed for life from the environment. A mammal could metabolize food to produce bodily warmth, but a reptile could not. Eventually a handful of researchers-led chiefly by John Ostrom and Robert Bakker at Yale-began to suspect that the concept of sluggish, cold-blooded dinosaurs was inadequate to explain the fossil record. In classic deductive fashion, they drew conclusions from several lines of evidence.

First was posture: lizards and reptiles were bent-legged sprawlers, hugging the ground for warmth. Lizards didn't have the energy to stand on their hind legs for more than a few seconds. But the dinosaurs stood on straight legs, and many walked erect on their hind legs. Among living animals, erect posture occurred only in warm-blooded mammals and birds. Thus dinosaur posture suggested warm-bloodedness.

Next they studied metabolism, calculating the pressure necessary to push blood up the eigbteen-foot-long neck of a brachlosaur, and concluding that it could only be accomplished by a four-chambered, hot-blooded heart.

They studied trackways, fossil footprints left in mud, and concluded that dinosaurs ran as fast as a man; such activity implied warm blood. They found dinosaur remains above the Arctic Circle, in a frigid environment unimaginable for a reptile. And the new studies of group behavior, based largely on Grant's own work, suggested that dinosaurs had a complex social life and reared their young, as reptiles did not. Crocodiles and turtles abandon their eggs. But dinosaurs probably did not.

The warm-blooded controversy had raged for fifteen years, before a new perception of dinosaurs as quick-moving, active animals was acecpted-but not without lasting animosities. At conventions, there were still colleagues who did not speak to one another.

But now, if dinosaurs could be cloned-why, Grant's field of study was going to change instantly. The paleontological study of dinosaurs was finished. The whole enterprise-the museum balls with their giant skeletons and flocks of echoing schoolchildren, the university laboratories with their bone trays, the research papers, the journals-all of it was going to end.

"You don't seem upset," Malcolm said.

Grant shook his head. "It's been discussed, in the field. Many people imagined it was coming. But not so soon."

"Story of our species," Malcolm said, laughing. "Everybody knows it's coming, but not so soon."

As they walked down the path, they could no longer see the dinosaurs, but they could hear them, trumpeting softly in the distance.

Grant said, "My only question is, where'd they get the DNA?"

Grant was aware of serious speculation in laboratories in Berkeley, Tokyo, and London that it might eventually be possible to clone an extinct animal such as a dinosaur-if you could get some dinosaur DNA to work with. The problem was that all known dinosaurs were fossils, and the fossilization destroyed most DNA, replacing it with inorganic material. Of course, if a dinosaur was frozen, or preserved in a peat bog, or mummified in a desert environment, then its DNA might be recoverable.

But nobody had ever found a frozen or mummified dinosaur. So cloning was therefore impossible. There was nothing to clone from. All the modern genetic technology was useless, It was like having a Xerox copier but nothing to copy with it.

Ellie said, "You can't reproduce a real dinosaur, because you can't get real dinosaur DNA."

"Unless there's a way we haven't thought of," Grant said. "Like what?" she said.

"I don't know," Grant said.

Beyond a fence, they came to the swimming pool, which spilled over into a series of waterfalls and smaller rocky pools. The area was planted with huge ferns. "Isn't this extraordinary?" Ed Regis said. "Especially on a misty day, these plants really contribute to the prehistoric atmosphere. These are authentic Jurassic ferns, of course."

Ellie paused to look more closely at the ferns. Yes, it was just as he said: Serenna veriformans, a plant found abundantly in fossils more than two hundred million years old, now common only in the wetlands of Brazil and Colombia. But whoever had decided to place this particular fern at poolside obviously didn't know that the spores of veriformans contained a deadly beta-carboline alkaloid. Even touching the attractive green fronds could make you sick, and if a child were to take a mouthful, he would almost certainly die-the toxin was fifty times more poisonous than oleander.

People were so naive about plants, Ellie thought. They just chose plants for appearance, as they would choose a picture for the wall. It never occurred to them that plants were actually living things, busily performing all the living functions of respiration, ingestion, excretion, reproduction-and defense.

But Ellie knew that, in the earth's history, plants had evolved as competitively as animals, and in some ways more fiercely. The poison in Serenna veriformans was a minor example of the elaborate chemical arsenal of weapons that plants had evolved. There were terpenes, which plants spread to poison the soil around them and inhibit competitors; alkaloids, which made them unpalatable to insects and predators (and children); and pheromones, used for communication. When a Douglas fir tree was attacked by beetles, it produced an anti-feedant chemical-and so did other Douglas firs in distant parts of the forest. It happened in response to a warning alleochemical secreted by the trees that were under attack.

People who imagined that life on earth consisted of animals moving against a green background seriously misunderstood what they were seeing. That green background was busily alive. Plants grew, moved, twisted, and turned, fighting for the sun; and they interacted continuously with ammals-discouraging some with bark and thorns; poisoning others, and feeding still others to advance their own reproduction, to spread their pollen and seeds. It was a complex, dynamic process which she never ceased to find fascinating. And which she knew most people simply didn't understand.

But if planting deadly ferns at poolside was any indication, then it was clear that the designers of Jurassic Park had not been as careful as they should have been.

"Isn't it just wonderful?" Ed Regis was saying. "If you look up ahead, you'll see our Safari Lodge." Ellie saw a dramatic, low building, with a series of glass pyramids on the roof. "That's where you'll all be staying here in Jurassic Park."

Grant's suite was done in beige tones, the rattan furniture in green jungle-print motifs. The room wasn't quite finished; there were stacks of lumber in the closet, and pieces of electrical conduit on the floor. There was a television set in the corner, with a card on top:

Channel 2: Hypsilophodont Highlands

Channel 3: Triceratops Territory

Channel 4: Sauropod Swamp

Channel 5: Carnivore Country

Channel 6: Stegosaurus South

Channel 7: Velociraptor Valley

Channel 8: Pterosaur Peak

He found the names irritatingly cute. Grant turned on the television but got only static. He shut it off and went into his bedroom, tossed his suitcase on the bed. Directly over the bed was a large pyramidal skylight. It created a tented feeling, like sleeping under the stars. Unfortunately the glass had to be protected by heavy bars, so that striped shadows fell across the bed.

Grant paused. He had seen the plans for the lodge, and be didn't remember bars on the skylight. In fact, these bars appeared to be a rather crude addition. A black steel frame had been constructed outside the glass walls, and the bars welded to the frame.

Puzzled, Grant moved from the bedroom to the living room. His window looked out on the swimming pool.

"By the way, those ferns are poison," Ellie said, walking into his room. "But did you notice anything about the rooms, Alan?"

"They changed the plans."

"I think so, yes." She moved around the room. "The windows are small," she said. "And the glass is tempered, set in a steel frame. The doors are steel-clad. That shouldn't be necessary. And did you see the fence when we came in?"

Grant nodded. The entire lodge was enclosed within a fence, with bars of incb-thick steel. The fence was gracefully landscaped and painted flat black to resemble wrought iron, but no cosmetic effort could disguise the thickness of the metal, or its twelve-foot height.

"I don't think the fence was in the plans, either," Ellie said. "It looks to me like they've turned this place into a fortress."

Grant looked at his watch. "We'll be sure to ask why," he said. "The tour starts in twenty minutes."

They met in the visitor building: two stories high, and all glass with exposed black anodized girders and supports. Grant found it determinedly high-tech.

There was a small auditorium dominated by a robot Tyrannosaurus rex, poised menacingly by the entrance to an exhibit area labeled WHEN DINOSAURS RULED THE EARTH. Farther on were other displays: WHAT IS A DINOSAUR? and THE MESOZOIC WORLD. But the exhibits weren't completed; there were wires and cables all over the floor. Gennaro climbed up on the stage and talked to Grant, Ellie, and Malcolm, his voice echoing slightly in the room.