The fossils of human ancestors show an increase in complexity as we move forward in the geological time scale. what does this complexity indicate?

I believe it is that evolution is a slow, gradual, and continuous process.

Explanation: It takes many years for evolution to occur, and it occurs very subtly for a long time. It is a gradual change and is always continuing :)

hi~~

i would say that hybridization occurs frequently in nature, because there are many types of hybrids that have occurred naturally, such as the mule (male donkey + female horse)