241
结构:一些科学家不相信鸟是从恐龙演化而来,表明其不相信的三个原因,反驳了前两个,第三个目前无法验证。
提出现象:some unconvinced
观点一:too late to given rise to birds(细节:鸟150million,恐龙115million)
反驳:①发现鸟时期的恐龙化石
②没有化石也不能说明不存在
观点二:wishbone不同
反驳:早期发现的化石不同,但发现了新的相同
观点三:肺
解释:无法确认对错,因为没有恐龙化石肺的记载
evidence: birds from dinosaurs
1. scientists unconvinced: argue time: T appear too late
-A 150m years ago, while T 115 years ago
2. rebuttal: investigators: uncovered bones M dates to time of A
-failure to find bones doesn's rule out existence
3. skeptics: wishbone- birds differ from T
-reasonable when only T discovered, but fossilized T clavicles look like A unearthed
4. scientists: lung-can't evolve from easy to complicated one
- can't supported or falsified