Answer: Although the fossils from these two regions were deposited half a million years apart, their many resemblances justify including them all as part of the same species, Homo habilis.
Step-by-step explanation:
The Afar region of Ethiopia is known for having provided the world´s oldest uncontested hominine, the Ardipithecus kadabba, which is believed to be 5.5 million years old.
On the other hand, fossils discovered in Northern Tanzania proved that there were at least two Australopithecus species and that the Australopithecus line wasn´t really affiliated to the Homo line. Furthermore, Australopithecus and Homo species existed next to each other for around one million years.