In a world where the dinosaurs never died out, Rekek and his adopted son accept a commission to lead a paleontologist to fossil-rich sites in the black hills of what’s South Dakota in our world.
Harry Turtledove
2 free-to-read stories indexed on Quasar
"They could have conquered Earth without breaking a sweat (if they’d sweated, which they didn’t). Instead, they were happy to trade. It hardly seemed fair to Dave, not that he was inclined to grumble. Everything people got from the Brot taught them new...