The Dikika region is an area of the Afar Region of Ethiopia where the hominid fossil named Selam (an example of the Australopithecus afarensis species) was found. Dikika is located in Mille woreda. Dikika is part of the Hadar formation, a series of sedimentary rocks deposited approximately 3.4 million years ago, which have been exposed by the erosive action of the Awash River.
The fossils were discovered by Zeresenay Alemseged, and are remarkable for both their age and completeness.
On September 20, 2006, the journal Nature presented the findings of a dig in Dikika, Ethiopia, a few miles south (across the Awash River) from Hadar, the place where the fossil remains known as Lucy was found. The recovered skeleton comprises almost the entire skull and torso, and many parts of the limbs. The features of the skeleton suggest adaptation to walking upright (bipedalism) as well as tree-climbing, features that correspond well with the skeletal features of Lucy and other specimens of Australopithecus afarensis from Ethiopia and Tanzania. CT-scans on her skull show small canine teeth forming, indicating that she was female. "Lucy's Baby" has officially been nicknamed "Selam" (meaning "peace").