animals that were evolving just beneath their feet. 这些动物正在它们脚下进化
But even they couldn't compare with the greatest social animals of their age, 但即使是它们也无法 与当时最伟大的社会性动物相比
Their terrible claws bring a swift end to the exhausted Arkansaurus. 它们恐怖的爪子 迅速了结了这只筋疲力尽的阿肯色龙
Catching up with their prey is one thing. 追上猎物是一回事
Their prey, Arkansaurus, is also a dinosaur... 它们的猎物阿肯色龙也是一种恐龙
giving them more time to raise their young as part of a family. 这让它们有更多时间 来照顾作为家庭成员的幼崽
but now started spinning their silk into complex webs... 但现在才开始 将蛛丝织成复杂的蜘蛛网
in return for their sweet liquid nectar. 作为回报 它们得到了甜美的花蜜
But the relationship between flowers and their beetle pollinators 但花与甲虫传粉者之间的关系