Because of the Ice Age, Ancestral Humans or Neanderthals spread across the Earth in order to find a warmer place to live and a place with less harsh conditions. Another reason for the migration of Ancestral Humans is the fact that they were following their source of food, the Woolly Mammoth.
During the ice age, vast ice sheets covered much of the northern hemisphere, leading to lower sea levels and creating land bridges between continents. This provided ancestral humans with new opportunities to migrate and colonize areas that were previously inaccessible. The harsh conditions of the ice age may have also encouraged human populations to adapt, evolve, and develop new survival strategies, ultimately leading to their widespread distribution across the earth.
An Anthropologist.
An anthropologist is a scientist who studies the physical characteristics and cultures of humans and their ancestors.
anthropologist
a geneticist
Surely, propliopithecus was ancestral to humans for the Human-like dental features.
humans
doctors
sociologist
archaeologist
Most scientist believe humans began in a stage where we were monkeys and by a place where like a man was from an egg. but we began from God
Only humans that scientist know of for now. There may be others, but you can become a scientist and find out!