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There were five species of Australopithecus: Australopithecus afarensis, Australopithecus africanus, Australopithecus anamnesis, Australopithecus garhi and Australopithecus sediba. The Australopithecus afarensis remains in Ethiopia are better known as Lucy and this species lived between 3.85 and 2.95 million years ago. The africanus lived 3.3 to 2.1 million years ago. The anamnesis lived 4.2 to 3.9 million years ago. The garhi lived about 2.5 million years ago and the sediba lived between 1.97 and 1.98 million years ago.
Homo erectus coexisted with several species of australopithecines including Australopithecus afarensis, Australopithecus africanus, and possibly Australopithecus garhi. These australopithecines lived before the appearance of Homo erectus and were part of the evolutionary lineage that eventually led to humans.
No, their brain was one-third of the size of ours. In other words, they were dumb. They could not make fire or control it (move it).
Australopithecus didn't wear any clothes
Australopithecus Afarensis were gatherers because they didn't have any tools to hunt, they just had arms to grab objects like children or food.
There is no evidence of Australopithecus fabricating ANYTHING. They did not make tools, they did not make containers, they did not make clothes. They wore nothing contrived.
Australopithecus didn't wear any clothes
Australopithecus did not wear any clothes. If they did, they would only have animal skin draped over their shoulders.
An example of adaptive radiation is Darwin finches, found in Galapagos Island. A large variety of finches is present in Galapagos Island that arose from a single species, which reached this land accidentally. As a result, many new species have evolved, diverged, and adapted to occupy new habitats. These finches have developed different eating habits and different types of beaks to suit their feeding habits.
If Lucy had any siblings there is no record of them.
They did not make any tools.
There is no record of any siblings Lucy may have had.