- using medicine to save another's life.
动物界只此一家 - By working together,
通过合作 - social animals like ants and termites
像蚂蚁和白蚁这样的社会性动物 - flourished under the dinosaurs.
在恐龙的统治下茁壮发展 - But the ground beneath all their feet was still on the move,
但它们脚下的土地仍在移♥动♥ - causing seismic change.
引发巨变 - Ninety million years ago,
9000万年前