The photo project was done for the organization Fishlove and included some other U.K.-based celebrities posing in the buff with critters ranging from bass fish to sharks. Its goal is to raise awareness of how overfishing is destroying the oceans. The release of Gillian's nearly nude pic, which was snapped by French portrait photographer Denis Rouvre, is timed with a European Parliament vote on banning destructive forms of deep-sea fishing in the Northeast Atlantic. The Fishlove organization is trying to rally voters to sign a petition ending deep-sea trawling – which, according to scientists, is negatively impacting the fish population and their habits – and Gillian solicited signatures in a Twitter post. Photo: “Fish Love” Project by Photographer Denis Rouvre. Gillian Anderson. (Photo by Denis Rouvre)

A model applies lipstick backstage during the “We Love Flamenco” fashion show in the Andalusian capital of Seville January 14, 2015. The show will run until January 18. (Photo by Marcelo del Pozo/Reuters)

Models walk the runway during the Maison Margiela Spring Summer 2016 show as part of Paris Fashion Week on January 27, 2016 in Paris, France. (Photo by Francois Durand/Getty Images)

Parc Astérix is a theme amusement park in France, based on the stories of Asterix (by Albert Uderzo and René Goscinny). Situated approximately 35 km (22 mi) north of Paris and 32 km (20 mi) from Disneyland Resort Paris, in Plailly in the département of Oise, it opened in 1989. The park is operated by Compagnie des Alpes.

Harper’s Bazaar August 007 “The Simpsons go to Paris with Linda Evangelista” “Models”: The Simpsons, Linda Evangelista, and various designers with Illustrations by Julius Preite. Marge lets down her hair for Versace. Lisa gives up her pearls for Alber Elbaz. Homer dresses as Karl Lagerfeld. Selma & Patty in Viktor & Rolf. Maggie rides around in Jean Paul Gaultier’s Birkin Bag. Quite possibly the most incredible fashion spread i’ve seen (ok maybe tied with the Marie Antoinette Vogue spread?). To see the spread, see the pics below, and for some great animated versus reality pics of the dresses and designers.

Audrey Tautou attends “La Delicatesse” Paris Premiere on December 13, 2011 in Paris, France. (Photo by Pascal Le Segretain/Getty Images)

A model presents a creation by German designer Karl Lagerfeld as part of his Haute Couture Spring Summer 2015 fashion show for French fashion house Chanel in Paris January 27, 2015. (Photo by Gonzalo Fuentes/Reuters)

Participants of the Sarenza High Heel Race 2015 warm up prior to the race during a party of the online shoe store, in Paris, Thursday, October 15, 2015. Competitors in teams of three girls race wearing shoes with more than 8 cm-high heels. (Photo by Francois Mori/AP Photo)