However, scientists believe they were not the first animals on Earth.

然而，科学家们相信他们不是地球上第一种动物。

youdao

He started making plans to send a troop of celestial soldiers and generals to Earth on the fifteenth day of the first lunar month, with orders to incinerate all humans and animals.

他开始制定计划，派出一支天兵天将于农历正月十五来到人间，命令他们火烧所有的人和动物。

youdao

He started making plans to send a troop of celestial soldiers and generals to Earth on the 15th day of the first lunar month, with orders to incinerate all humans and animals.

他开始制定计划，派出一支天兵天将于农历正月十五来到人间，命令他们火烧所有的人和动物。

youdao

When she was only twelve years old, Mary became the first person to find the almost complete skeletons of several animals that no longer existed on Earth.

VOA: special.2009.05.13