Birds use body odour to smell out potential mates, and partners who are genetically unrelated to them smell more attractive.
US ideas about conservation center on walling off land from use. That approach often means expelling Indigenous and other poor people who may be its most effective caretakers.
As Black birdwatcher Christian Cooper learned in New York City's Central Park, nature is seen as a white space and Black birdwatching as an aberration.
As Leonardo da Vinci found centuries ago, scholars of art, design, engineering and science can work together for mutual benefit.