For many years ,scientists have been trying to discover genetic information about the dinosaurs which lived on the earth millions of years ago.They believe that by using genetic engineering,they may be able to produce new dinosaurs.
One group of scientists were confident that this would be a possibility after a 68 million years ago dinosaur skeleton was discovered. As it was being lifted from the ground,one of the bones broke and they found something soft inside that was not stone.This was a remarkable discovery for scientists ,who had believed that every part of a dinosaur's body would have turned to stone after such a long time.
Although this discovery meant that dinosaurs could be produced. as in Jurassic Park,scientists realised that the work would take too long and decided to look for other ways to bring back dinosaurs.
Their next idea was to look at birds.Paleontologists know that birds belong to the same genetic family as dinosaurs,so studying birds'genes may be the best way to produce these ancient giants.A discovery in China showed that dinosaurs had feathers like birds.
More surprisingly ,it has been discovered that in the egg,some baby birds have vary small teeth and tails like dinosaurs.
Although scientists now believe that it is possible to wake the sleeping genes in birds and produce new dinosaurs,many people oppose the idea.They believe that dinosaurs should remain the subject of films and books only.
اسئلة :
complete the sentences using information from the article :
أكمل الجمل الاتية بإستخدام معلومات من المقال :
- The dinosaur's bone broke when scientists were.............out of the ground.
- The scientists were surprised when they found.......................inside the broken bone.
- Scientists did not try to produce dinosaurs from the old bones because........................
- Instead ,They decided to study.........................
- Before they come out of their eggs,baby birds have..........................
- Not everyone thinks it is a good idea to......................................
تدريب 1 على القرءاة:Are dinosaurs coming back?( المستوى الاول)
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