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Australopithecus afarensis

Meet Lucy! She's an ancient human ancestor who walked the Earth millions of years ago!

Images

Australopithecus afarensis fossil hominid (Lucy skeleton) (Hadar Formation, Pliocene, 3.2 Ma; Hadar area, Afar Triangle, northern Ethiopia, eastern Africa) 3

Australopithecus afarensis fossil hominid (Lucy skeleton) (Hadar Formation, Pliocene, 3.2 Ma; Hadar area, Afar Triangle, northern Ethiopia, eastern Africa) 3

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Australopithecus afarensis fossil hominid (Lucy skeleton) (Hadar Formation, Pliocene, 3.2 Ma; Hadar area, Afar Triangle, northern Ethiopia, eastern Africa) 2
Three-year-old Australopithecus afarensis and Two-year-old Neanderthal
Sahelanthropus tchadensis and Australopithecus afarensis cranial endocast
Australopithecus afarensis cranial endocast
Earliest known human footprints - one set - australopithecus afarensis - Smithsonian Museum of Natural History - 2012-05-17
Australopithecus afarensis
Australopithecus afarensis fossil hominid (Pliocene, eastern Africa) 1
Australopithecus afarensis
Australopithecus afarensis fossil hominid footprints (Pliocene, 3.6-3.7 Ma; Laetoli area, northern Tanzania, eastern Africa)
Australopithecus afarensis
Reconstruction of the fossil skeleton of 'Lucy' the Australopithecus afarensis

Key Facts

Scientific Name
Australopithecus afarensis.
Habitat
East Africa, including Ethiopia and Tanzania.
Diet
Omnivore - ate plants, fruits, and possibly small animals.
Size
Females were about 105 cm (3.5 ft) tall, males up to 165 cm (5.5 ft) tall.
Fun Fact
The famous fossil 'Lucy' is a member of this species!

Who Was Lucy and Her Friends?

Imagine a creature from a long, long time ago, even before dinosaurs! That's Australopithecus afarensis. The most famous one we found is called Lucy.

She lived about 3.2 million years ago in a place called East Africa. Lucy was not quite as tall as a modern kid, maybe only as tall as a big dog. She had a face that stuck out a bit, like a friendly bulldog, and her arms were a little longer than her legs.

Scientists found lots of her bones, which helped them learn how she lived.

Walking Like Us!

One of the coolest things about Lucy and her family is that they walked on two legs, just like you do! Scientists found footprints they left in hardened mud, like a super old sidewalk. These footprints show they were pretty good at walking, though maybe not as fast at running as we are.

Their legs were strong for walking, but their arms were still a bit like a monkey's, which might mean they liked to climb trees sometimes too!

What Did They Munch On?

Australopithecus afarensis was an explorer of food! They ate all sorts of things they could find. This included yummy plants from grassy fields and forests, and maybe even bugs or small animals that ate those plants.

They were like super-smart snackers, able to find food in different places like open grassy areas, bushy places, or near rivers. They were very good at using whatever their environment offered them to eat.

A Family Tree Millions of Years Old

Australopithecus afarensis is like a great-great-great-grandparent to us humans! Scientists think they might be an important link in our family tree, showing how humans slowly changed over millions of years. They lived in East Africa, in places like Ethiopia and Tanzania.

Finding their bones and footprints helps us understand where we came from and how our ancient relatives lived their lives way back then.

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