One byproduct of photosynthesis is a gas, 光合作用的副产品之一是一种气体
But this is the story of what was happening beneath the waves. 但本集将讲述的是海浪下发生的故事
Life today is the 1% that made it through. 如今的生命只是那幸存下来的1%
where the best form of defense is attack. 在这里 最好的防守就是进攻
Triceratops is very different to the defenseless Maiasaura. 三角龙 与无防御能力的慈母龙非常不同