The ability to survive if humans returned 2.5 million years ago

What if you returned to Earth 2.5 million years ago?

First, please evaluate the environment 2.5 million years ago. You will live in Renovation, lasting about 2.6 million years to 11.7,000 years ago.

This is the most recent period of the Ice Age. At its peak, when most of the water on the Earth freezes, the average global temperature is 5-10 degrees lower than it is today, the Earth is much cooler and drier. So, if you don't have a super-cool shirt, your chances of survival are quite small.

Back in the past without medicine, you won't last long.

During this period, you can also meet one of the oldest ancestors of humanity: Homo habilis . This breed looks more like a primate than a modern person, but can walk on its hind legs and use its hands to make stone tools.

The name Homo halibis means "clever person" , scientists are not sure whether Homo habilis will attack you. However, most people believe that they are vegetarian and only hunt small creatures. So you probably won't be in direct danger.

So what about illness?

It is suggested that many diseases in humans start when animals are kept in the house. But some diseases such as tuberculosis, fluke, mycobacterium infection, leprosy . can appear from Renewal.

Scientists also believe that B.bronchiseptica that affects them 2.5 million years ago could evolve into bacteria that cause pertussis today.

In addition, the malaria-causing parasite appeared 2.5 million years ago. They were quite benign at the time. Malaria only becomes seriously ill after agriculture is born and humans appear dense.

But if you go back 2.5 million years ago and live without a modern medicine, you probably won't last too long.