Not only glimpses into prehistoric men.
But also glimpses of prehistoric animals.
“Look at Behemoth,
which I made along with you
and which feeds on grass like an ox.
What strength it has in its loins,
what power in the muscles of its belly!
Its tail sways like a cedar;
the sinews of its thighs are close-knit. Job 40:15-17
And, not to mention the creature found in Job 40:15-20
Why mention these prehistoric animals?
For all eyes of the angels were on Job.
After all... Satan had just made a major wager with the Lord about Job.
And, with the angels all watching?
They could see that Job was being as a prophet, able to see the past that he had no part of.
It verified that God was working through Job!
It probably stunned the angels at first, to see Job commenting of the world that used to be theirs.
The one they left behind.