Kalei Ferrin,3, holds a sign up in support of gay rights during the San Diego gay pride parade July 16, 2011 in San Diego, California. About 200 active-duty troops and veterans from every branch of the military participated for the first time in the march as the ban on the government policy on homosexuals serving in armed forces, or “Don't ask Don't Tell”, remains in flux in the justice system. (Photo by Sandy Huffaker/Getty Images)

Attendee Ana Niebla arrives in costume as Princess Penny Wise for opening night of the pop culture festival Comic Con International in San Diego, California, U.S., July 17, 2019. (Photo by Mike Blake/Reuters)

Evy Thomas, dressed as Mystique, poses for a portrait on day one of Comic-Con International on Thursday, July 18, 2019, in San Diego. (Photo by Rebecca Cabage/Invision/AP Photo)

A group of San Bushmen from the Khomani San community practice their hunter-gatherer craft in the Southern Kalahari desert on October 15, 2009 in the Kalahari, South Africa. One of the largest studies of African genetics by an international team from the University of Pennsylvania, published in April 2009, revealed that the San of Southern Africa are the most genetically diverse on earth, and that the San homeland could be the spot where modern humanity began. (Photo by Dan Kitwood/Getty Images)

General view of “Marie Claire” Magazine Film Exhibition at Oquendo street during 59th San Sebastian Film Festival on September 22, 2011 in San Sebastian, Spain. (Photo by Carlos Alvarez/Getty Images)

A cosplayer dressed as Domino attends 2019 Comic-Con International on July 20, 2019 in San Diego, California. (Photo by Quinn P. Smith/Getty Images)

Photograph of model Czech-Italian Eva Herzigova taken by Italian photographer Gian Paolo Barbieri in Rome, Italy, 1997. (Photo by Gian Paolo Barbieri/Fondazione Gian Paolo Barbieri/29 ARTS IN PROGRESS gallery/Handout via Reuters)

Photograph of model Aly Dunne dressed in Gianfranco Ferre' design taken by Italian photographer Gian Paolo Barbieri in Milan, Italy, 1992. (Photo by Gian Paolo Barbieri/Fondazione Gian Paolo Barbieri/29 ARTS IN PROGRESS gallery/Handout via Reuters)