这化石显示，早在鸟类出现之前，孵蛋的行为就已经演化出来。
The fossil demonstrates that brooding behavior evolved long before there were birds.
化石显示，某些现已灭绝了的更早期的植物，也进化到了依靠蝎蛉授粉的阶段。
Fossils suggest that some earlier groups of plants, now extinct, had evolved a dependency on insects like scorpionflies.
发现的其他遗骸化石显示，他们与l包括剑齿虎在内的食肉动物共同生活在同一时期。
Other remains suggest they lived alongside predators including sabre-toothed cats.
应用推荐