translation.en: And if you look north here, there's a big river that flows into the lake that's been carrying sediment and preserving the remains of the animals that lived there.
translation.zh: 如果你看北边，有一条很大的河流流入湖中， 河流携带了含有动物遗迹的沉积物 那些曾经生活在那一带的动物。