今年4月,美国古生物学家罗伯特-巴克在一所大学里举行讲座时,发出了一个惊人之语:恐龙,并不是像我们所想象的那样,而且现在,它们正在天空飞翔!此论一出,举座震惊。其实,这是继七十年代古生物学界爆发的那场论战的延续。当然也是罗伯特·巴克毕生研究的最终成果。国际古生物学界在本世纪后半叶,围绕着恐龙是不是热血动物、恐龙是否灭绝展开了一场论战。认为恐龙不是变温的冷血动物而是恒温的热血动物这一学说的提出,改变了古脊椎动物学上的许多陈旧提法。有研究者认为恐龙并未灭绝,鸟类就是恐 In April this year, when American paleontologist Robert Barker held a lectures at a university, he made a startling remark: Dinosaurs are not as we have imagined, and now they are flying in the sky. Shocked. In fact, this is the continuation of the polemic that broke out in the paleontological circles in the 1970s. Of course, is the final result of Robert Buck’s lifelong research. In the second half of this century, the international paleontological community started a polemical debate about whether dinosaurs are exuberant animals and whether dinosaurs are extinct. The doctrine that dinosaurs are not warm-blooded, but warm-blooded, has changed many of the ancient obstetric references. Some researchers think dinosaurs are not extinct, birds are fear