Why are depictions of dragons found in every culture on Earth, even the Maya and Aztec? Show anyone on this planet a drawing of a dragon and they will recognize it. Perhaps dinosaurs lived a little longer than we know............................
or Maybe it is folk remembrance of alligators.
And then there are a variation in Greek mythology where they don't have wings.
as for unicorns: apparently they came from southern Siberia, where the ancestors of Europeans and Chinese and Amerindians lived at one point if one believes the DNA studies (which of course change every week).
One of my favorite sci fi stories is when a “capitalist” green dragon from wales was discovered, as was a red one from Communist China, and some rich guy bought them both to televise a fight between them. Instead, the dragons mated...