Is the closest relative to modern humans. cro-magnon homo erectus neanderthals

Neanderthals

Explanation:

Modern Neanderthal humans are close relatives who may have split 800,000 years ago, hundreds of thousands of years earlier than previously thought, according to a new study based on dentition.

By comparing the genetic material of Neanderthals with that of early humans, scientists have gained new evidence that Neanderthals are the closest relatives of humans. Scientists also confirm that the two species coexisted and that they crossed each other earlier than previously thought.

b. the 200th birthday of the united states