[tbw2]

“In Conquest Born” by Cherryh was great. It was also an all in one novel, start to finish, instead of many books that drag out the plot because someone wants to drag out the royalties.

For the truly cerebral, Donald Moffitt wrote “Second Genesis” and “Genesis Quest”. Humans send out instructions to make people out into space before they go extinct, the Nar recreate our species, and after a struggle, some descendants of humanity try to return home.
Near light speed travel plus immortality treatment = 70-100 million year epic, rise and fall of several intelligent species on Earth, and interesting contrast of human to alien.

[NativeSon]

Humans send out instructions...

SOLD! next on my list

[NativeSon]

For the truly cerebral, Donald Moffitt wrote “Second Genesis” and “Genesis Quest”

Started reading it last night - can't wait to read more.

Thanks for the tip.

[EvilOverlord]

Try The Last Legends of Earth, which is about humans being recreated long after their extinction for use as bait in a war against aliens that feed on the pain of sentient creatures. This epic spans only a few thousand years, rather than the 70-100 million that you mention, but it does cover the rise and fall of the new human society and its corruption by the aliens.