T-rex growling, huffing, bellowing, and roaring. I had to cover myself in spinosaurus pee to get this. :b. (made with cc0 samples of alligator, lion, and elk).
In the Walls of Eryx, H.P. Lovecraft and Kenneth Sterling "Prehistoric human invasions of Venus can be pretty well ruled out, so that one must turn to the idea of native construction. Did a forgotten race of highly evolved beings precede the man-lizards as masters of Venus?"