Echoes of an Alien Sky

"Studies of Terran geology, scientific works, and ancient records show that Earth's early peoples witnessed terrifying cataclysmic cosmic events in skies very different from those seen today. In his travels among the Terran ruins, Kyal meets a biologist called Lorili, who is attempting to explain certain baffling similarities between some Terran and Venusian life forms that are irreconcilable with the established fact that Venus is a far younger planet than Earth. Formerly aligned with the "Progressive" activists back on Venus, Lorili admires the qualities of tenacity and determination written through Terran history. She constructs a theory of Venusians being descended from Terran ancestors." "However, even allowing for the greatly exaggerated time scales that Terran science assigned to the processes of biological and planetary evolution, further research shows that there could have been no overlap. The Terrans were extinct long before life emerged on Venus.".