Selam may actually be younger than Lucy's namesake, the 3.2-million-year-old human ancestor discovered in Ethiopia in the 1970s.

Chad, which holds a presidential election on May 6, has been ruled by the same family for more than three decades.

To get a picture of how Lucy's species, Australopithecus afarensis, moved, scientists compare fossils to the bones of modern humans, as well as to the anatomy of "knuckle-walking" primates like ...

The students used calipers to measure and quantify bony protrusions on skulls from five ancient periods of human species; ...

Strictly speaking, our next stop on the walk through time should have been a 3.4-million-year-old site called Maka, which had yielded a jaw and some other remains ofAustralopithecus afarensis.

Competition between species played a major role in the rise and fall of hominins—and produced a "bizarre" evolutionary ...

Scientists have long been puzzled by the question of humanity's earliest ancestors and the way in which we evolved from ...

Subsequent discoveries of Australopithecus afarensis and associated fauna appeared to corroborate this hypothesis. However, the ecological contexts of the earliest hominins suggest that the link ...

Below is a personal account of my field experiences at Laetoli, Tanzania, a site made famous when Dr. Mary Leakey and her team discovered fossilized footprint trails of Australopithecus afarensis ...

Notes: *For example, the hominin species Australopithecus afarensis was believed to have speciated via anagenesis from Australopithecus anamensis. However, the new data modelling suggests they ...

Other remarkable fossils of Lucy's species, Australopithecus afarensis, were later unearthed at other sites. Together, they offer a picture of one of our earliest human ancestors. Learn how ...