Lucy, discovered by Donald C. Johanson and Tom Gray, is Our Oldest and Most Complete Human Ancestor

At first, Johnson thought that the knee was a monkey or a donkey, but it does not seem to belong to this animal. He handed the bone to an anatomist and part-time forensic expert Owen Lovejoy. Lovejoy examined bone fragments and concluded that they looked like humans. The joint can be "locked", indicating that the animal can walk upright. This is an important discovery of ancient bipedal walking creatures. If the age of the bone is consistent with Johnson's hypothesis "Missing Link", it will support Johnson's theory.

In 1974, Donald Johnson and Tom Gray discovered nearly half of the bones of 320,000 years ago with Ethiopian Hadar. This is rare because most fossils are very small, usually not perfect. After the Beatles' song "Diamond in the Sky Lucy", Johnson named Lucy. She died about 25 years old, weighed about 28 kilograms, and its height was 107 cm. In 1976, an archaeologist's team led by Mary Leki Andrew Hill found a trace of footprints in Letoli in Tanzania while throwing an elephant's feces to his colleagues. These footprints are special because there is a history of about 3.5 million years because it proves that humans only walk with two feet at a time.

Paleontologists Donald Johnson and Tom Gray, excavated in Ethiopia's Hadaru in 1974, were named Lucy at the Beatles song "Lucy's Diamond", part of the earliest known primitive skeleton "After" They are playing camping when celebrating. Lucy was very primitive two million years ago, and her brain and body are roughly the size of the chimpanzee. But her ankle, knee and pelvis show like she walks upright. This means that Lucy is just a primitive man and our close relatives in the human family are always on the ground. As a member of the Australopithecus Affarensis who lived nine to ten million years ago, Lucy helped to answer some important questions. About six million years ago, long before human beings began using stoneware, she confirmed that straight ups developed, before their brains began to expand dramatically. But her upright posture and gait cast new doubt

The most complete early human skeleton known as Lucy's fossil was discovered by an ancient anthropologist Donald Johnson in 1974, and Lucy was special because nearly half of the bones were discovered. Johanson is said to have been named after the Beatles' song "The Diamond Dew in the Diamond Sky". They are playing at the campground. From the pelvis, they can know that the bones are females and that it is bipedalism

When I was looking for fossils in Ethiopia's Afar Delta in November 1974, ancient anthropologist Donald Johnson and graduate student Tom Gray stumbled upon some of the ruins of monkey's rare species that had not been known before . The mysterious skeleton of the nickname "Lucy" eventually was classified as "Arabian afer" two million years ago - one of the earliest ancestors of mankind. Capturing the title found an important gap in human genealogy. Look at the explanation of the left Lucy artist, and look at the AFAR map in the lower left of Ethiopia.