There is still an overall presumption of heterosexuality,” the biologist Bruce Bagemihl told me. “Individuals, populations or species are considered to be entirely heterosexual until proven otherwise.” While this may sound like a reasonable starting point, Bagemihl calls it a “heterosexist bias” and has shown it to be a significant roadblock to understanding the diversity of what animals actually do.
We still don’t know what humans actually do. We still don’t know the full picture and likely never will.
But Kinsey would not have been surprised by any of this.
Source: The New York Times