Questions: Robust australopithecines were extinct by: 1 mya 3 mya 4 mya

Robust australopithecines were extinct by: 1 mya 3 mya 4 mya
Transcript text: Robust australopithecines were extinct by: 1 mya 3 mya 4 mya
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Solution

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The answer is the first one: 1 mya.

Explanation for each option:

  • 1 mya: This is the correct answer. Robust australopithecines, which include species like Australopithecus robustus and Australopithecus boisei, are believed to have gone extinct around 1 million years ago (mya).

  • 3 mya: This is incorrect. Around 3 mya, robust australopithecines were still present and had not yet gone extinct.

  • 4 mya: This is incorrect. At 4 mya, robust australopithecines had not yet evolved. The earliest australopithecines, such as Australopithecus anamensis, were present around this time.

In summary, robust australopithecines were extinct by approximately 1 million years ago.

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