4th: Let's read the following noble verse together:

((And when your Lord said to the angels, I am going to place a viceroy in the earth, they said: What! wilt Thou place in it such as shall make mischief in it and shed blood, and we celebrate Thy praise and extol Thy holiness? HE said: Surely I know what you do not know.)) The noble Quran, Chapter 2 , Verse 30

This verse states that angles were created before Adam but the angels do not know the future so what made the angels judge that the viceroy in the earth will make mischief if there wasn't a previous viceroy who did that.

5th: Let's read the following noble verses:

((O men! you are they who stand in need of GOD, and GOD is HE Who is the See Self-sufficient, the Praised One,If HE will, HE can be rid of you and bring (instead of you) some new creation.)) The noble Quran, Chapter 35, Verses 15-16

Observe the verse 16, isn't giving impression that current humans appeared due to the same thing.

 6th: Observations in Human chapter:

((WE, even WE, created them, and strengthened their frame. And when WE will, We can replace them, bringing others like them in their stead.)) The noble Quran, Chapter 76, Verse 28

((Strengthened their frame)) can it mean that the limbs of the current humans are stronger than those of the previous viceroy?

P.S.: Does the discovery of bones of creatures (that used to stand just like the current human) but their limbs are weaker than ours and they disappeared before the appearance of the current humans (Homo Sapiens) proofs that previous noble verse. Also some materials were discovered that belonged to that people (previous viceroys) which proofs that they had the ability to think.

((Say: Travel in the earth and see how He makes the first creation, then Allah creates the latter creation; surely Allah has power over all things.)) The noble Quran, Chapter 29, Verse 20

At the end this article is for discussion and GOD knows best.

((but none knows its interpretation except GOD)) The noble Quran, Chapter 3, Verse 7

((For every revealed thing (in the Quran) there is a term, and you will come to know (when its time comes).)) The noble Quran, Chapter 6, Verse 67