Rats, fleas, and mice where mainly the first to get the plague and spread it around.
The animal that started the plague first was the rat. They had parasites in their skin and spread it to humans
central Africa
They couldn't plant them first of all.
Humans began in Africa and spread from there.
No, cats cannot spread lice to humans. Lice are specific to humans and cannot survive on animals like cats.
No, distemper cannot spread to humans. It is a disease that primarily affects animals, especially dogs.
No. It can not spread to humans, cats or dogs either.
The Jungfrau is a very conspicuous mountain. It will have been discovered by the first humans to pass that way as we spread out of Africa.
First humans appeared in Africa about 23 million years ago and they first look like apes. As time flies, they evolved very slowly and spread everywhere in the world until the present day.
It is supposed that human life originated in Africa, and spread out world-wide from there.
it isn't spread, it develops from other causes