Well, gene was, gene was an ornithologist, got his PhD at Yale and wrote some real seminal papers from his PhD work on propagation of different frequencies of bird song through different habitats. And he showed that the frequency of the song was geared to the kind of floral density of the habitats. So Grasslands had songs that were in a certain frequency range, and forests had a different fre frequency range for a variety of birds. And he demonstrated this with a number of species. So it was, it, it was convincing evidence that he had compiled.
