What important clues do you think fossils like lucy provide about the past

This fossil helped us to understand how the first human beings developed and how they began to be bipedos beings, it also gives us an approximate date of the moment in which this happened.

Explanation:

Lucy (AL 288-1) is the set of bone fragments belonging to the skeleton of a hominid of the species Australopithecus afarensis, 3.2 to 3.5 million years old, discovered by the American Donald Johanson on November 24 from 1974 to 159 km from Addis Ababa, Ethiopia. It is about 40% of the skeleton of a female about 1.10 meters tall, approximately 27 kg in weight (when she was alive), about 20 years old (the wisdom teeth were just out) and that at It seems he had a son. Endowed with a tiny skull, comparable to that of a chimpanzee, Lucy was on her hind limbs, a formal sign of an evolution towards hominization. Lucy's bipedal ability can be deduced from the shape of her pelvis, as well as from the knee joint.