New species of early humans discovered in South Africa

  In the early 1990s, Professor Ronald Clark of the University of Witwatersland in South Africa excavated an eye-catching skeleton in South Africa, which attracted widespread attention from the archaeological community around the world.
  At first, Professor Clark only found 4 foot bones. These foot bones were once believed to belong to monkeys, but after careful examination, Clark believed that they were more similar to the existing Australopithecus fossils. These foot bones have earned them the nickname “Little Feet” because of their small size.
  Three years later, Professor Clark and his colleagues discovered more “small feet” bones in the same cave. These bones are buried deep in the rock deep in the cave. Researchers spent more than 10 years digging them out piece by piece with an air scraper (a tool that sprays small high-pressure air), and then reconstructed a complete bone specimen.
  Preliminary research shows that “Little Feet” is an elderly female, about 130 cm tall, who lived about 3.67 million years ago and belongs to a species of Australopithecus. She has injured one arm and slightly fractured it. Another interesting finding is that her lower limbs are longer than her upper limbs, and the ancestor of humans, earth apes (lived about 5 million years ago and was able to walk upright), which appeared earlier than Australopithecus, has arms longer than Long legs.
  ”Xiaojiao” may be worse than ours in moving things, but her ability to climb trees is better than ours. This is suitable for her living environment, because her habitat is a mixture of tropical rainforest, fragmentary woodland and grassland.
  For many years, Clark has believed that the “small feet” and other bones excavated from the Stickfontein cave in South Africa did not come from any known Australopithecus species. Not only on the skull, but also on other parts of the bones, there are many differences. These differences include that they have a flatter face and larger teeth than the African species of Australopithecus, and there is a larger gap between the upper canines and the incisors. According to her teeth, “Little Feet” only eats plants, while the African species of Australopithecus is omnivorous.
  Therefore, Clark named the species represented by “Little Feet” after Prometheus in ancient Greek mythology, who stole the sky fire and turned people into the spirit of all things, and called it “Australopithecus Prometheus”.