What is neantherdeal?

It seems there might be a typo in your question. If you're referring to "Neanderthal," they were a species of archaic humans that lived in Europe and parts of Asia until about 40,000 years ago. Neanderthals are known for their robust build and adaptation to cold climates, and they share a common ancestor with modern humans. Recent research also indicates that they interbred with early Homo sapiens, contributing to the genetic makeup of contemporary non-African populations.