Long before the existence of birds, 在鸟类出现之前很久
have been one of nature's greatest spectacles for millions of years. 这样的聚集 一直是自然界最壮丽的奇观之一
Here, on the edge of the Great Barrier Reef... 在大堡礁的边缘
was when some of them turned their back on the land 也许是其中一些动物放弃陆地
But perhaps the most remarkable chapter of that early era of reptile supremacy... 但爬行动物统治时代早期 最精彩的篇章
This is an echo of what life was like back in the Triassic. 这是三叠纪时期生活的历史回声
prevents the blood of its prey from clotting, 使猎物的血无法凝结
A thick layer of mud can't disguise this animal's scent. 厚厚的泥浆掩盖不住它的气味
the adult goes in search of something more accessible. 只能去寻找更容易攻击的目标