I like for people to imagine your legs being like old tree trunk roots that roots you deep in the ground like the tree.

我喜欢人们把你的腿想象成老树干的根，让你像树一样深深扎根在地下。

Their remains have been found throughout the Northern Hemisphere, but they're especially common in North America, where fossilized roots, trunks, and leaves have been found from almost every stage of the plant's life cycle.

它们的遗骸在整个北半球都有发现，但它们在北美尤为常见，那里几乎在植物生命周期的每个阶段都发现了根、树干和叶子的化石。