as they competed to attract the very best pollinators. 因为它们争相吸引最杰出的传粉者
that is still very much with us today. 这种创新今天仍然存在
that offer a glimpse into that very distant past. 我们能够一窥遥远的过去
forming its very own diving bell... 形成一个属于它自己的潜水钟
thanks to huge changes to the very structure of our planet. 这得益于地球结构的巨大变化
they were the very first animals to escape the seafloor and swim. 它们是第一种从海底逃离 并开始游泳的生物