The difference between modern humans and their predecessors is that the modern human is homo sapiens whereas the predecessors are the hominids.
Predecessors were the human species that existed before today's species of humans.
The modern human is actually the current form of extinct species called homo sapiens and the predecessors are the earlier form of the current human race called hominids.
Therefore, the contrast between two groups of people is based on their species.
Learn more about the predecessors in the related link:
https://brainly.com/question/3978049
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