antehuman

例句：

1. 1.The researchers believe that antehumans may have existed before humans.
   研究人员认为，前人类可能存在于人类之前。
2. 2.The discovery of antehuman fossils has sparked debate about the origins of life.
   发现前人类化石引发了关于生命起源的辩论。
3. 3.Anthropologists study the behavior and evolution of antehumans to better understand our own past.
   人类学家研究前人类的习性和进化，以更好地了解我们自己的过去。