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The 32 pages that link to Australopithecus afarensis, each with the reason it gives.

• Human evolutionBroader topic: Its fossils document early bipedalism long before the appearance of Homo sapiens.

• BipedalismBroader topic: Its skeleton and footprints show that habitual bipedalism was established by its time.

• HomininBroader topic: Its fossils document an early hominin with habitual bipedalism and a small brain.

• PlioceneBroader topic: Its fossils document bipedal hominins during the later Pliocene.

• AustralopithecusBroader topic: This well-studied species includes the fossil known as Lucy.

• Australopithecus africanusCompared with: Its older East African record provides a comparison for hypotheses about the species’ ancestry and dispersal.

• Mosaic evolutionBroader topic: Its bipedal adaptations coexisted with a small brain, illustrating uneven change across traits.

• Laetoli footprintsRelated: It is the leading candidate for the makers of the best-known Laetoli trail.

• Mary LeakeyRelated: The Laetoli footprints are commonly attributed to this species.

• Hominin taxonomyBroader topic: Its abundant fossils make it a central case in hominin classification.

• Lomekwi 3Related: It is one possible broader comparison for hominins living when Lomekwi tools were made.

• Hominin evolutionBroader topic: Its fossils preserve early bipedal anatomy alongside adaptations for climbing.

• LaetoliRelated: This species is widely associated with the hominins that made the Laetoli footprints.

• Lucy (Australopithecus)Narrower topic: Lucy became the best-known specimen of the species and anchors its public recognition.

• Foramen magnumBroader topic: The position of its foramen magnum helps assess its habitual posture and bipedal locomotion.

• ArdipithecusBroader topic: Its more familiar bipedal anatomy contrasts with Ardipithecus’s combination of traits.

• Hominin phylogenyBroader topic: Its anatomy and age place it near the early diversification of later hominins.

• SahelanthropusRelated: Its abundant skeletal record offers a later comparison for hominin anatomy and bipedalism.

• Australopithecus anamensisRelated: Researchers debate whether it descended from this species or shared a more distant ancestor.

• Lower PaleolithicRelated: It predates most accepted stone-tool industries, amid debate over possible earlier tool use.

• Ardipithecus kadabbaCompared with: Its later age and abundant remains contrast with kadabba’s early, sparse record.

• Australopithecus garhiCompared with: It is older and better represented, providing a regional comparison for garhi.

• Human skeletonBroader topic: Its fossils document early habitual bipedalism alongside retained climbing adaptations.

• Paranthropus aethiopicusCompared with: Its earlier fossils offer a possible ancestral comparison, though direct descent is unsettled.

• HomininaeRelated: Its fossils document an early, well-known branch of the human lineage.

• Australopithecus bahrelghazaliCompared with: It is the close, better-known species against which bahrelghazali's distinctiveness is assessed.

• Australopithecus deyiremedaCompared with: Its overlapping time and region make it a key comparison for interpreting hominin diversity.

• DinofelisRelated: Its remains occur in regions where Dinofelis fossils document overlapping ecosystems.

• Transitional fossilBroader topic: Its fossils combine habitual bipedal adaptations with features useful for climbing.

• AustralopithecineBroader topic: Its fossils include Lucy and the Laetoli footprints.

• Brow ridgeBroader topic: Its fossils show how brow-region form varied before the genus Homo.

• KenyanthropusCompared with: Its fossils overlap in age and region, complicating comparisons with Kenyanthropus.