Demonstrators wear skull masks during an anti government protest, as Chile's President Michelle Bachelet delivers a speech inside the National Congress, in Valparaiso city, Chile May 21, 2016. (Photo by Ivan Alvarado/Reuters)

Mortsafes were contraptions designed to protect graves from disturbance. Resurrectionists had supplied the schools of anatomy in Scotland since the early 18th century. This was due to the necessity for medical students to learn anatomy by attending dissections of human subjects, which was frustrated by the very limited allowance of dead bodies – for example the corpses of executed criminals – granted by the government, which controlled the supply.

A voodoo believer, dressed as "Gede", a spirit of voodoo, sits on the cross of Baron Samdi during celebrations at the cemetery of Port-au-Prince, Haiti, November 1, 2016. Voodoo believers and devotees offer candles, alcohol and food. The Day of the Dead is celebrated on the first two days of November during All Saints and All Souls Day. (Photo by Andres Martinez Casares/Reuters)

Actors wrapped in blankets react at the set of the post-apocalyptic movie “Zombie Era” at an abandoned factory complex in Langfang, Hebei province, China December 16, 2016. (Photo by Damir Sagolj/Reuters)

Visitors look at a tower exhibit of 429 different kinds of pumpkins and squash from all over the world at the Buschmann and Winkelmann pumpkin farm on October 9, 2011 in Beelitz, Germany. The farm, located in Brandenburg state near Berlin, harvests tens of thousands of pumpkins from approximately 40 different kinds between August and October and is known for its elaborate, theme-based pumpkin exhibits. (Photo by Sean Gallup/Getty Images)

Santa Claus greets a child during a visit to residents of the slum of Petare in Caracas, Venezuela, December 11, 2016. (Photo by Ueslei Marcelino/Reuters)

A Nativity scene is seen at the window of a house in the medieval mountain village of Luceram as part of Christmas holiday season, France, December 15, 2016. Luceram presents more than 450 creches (Nativity scenes) from the tiny to the huge yearly in December as part of the Circuit des Creches. (Photo by Eric Gaillard/Reuters)

A skydiver dressed as Santa Claus prepares to leap out of a plane as 155 tandem skydivers set a new Guinness World Record over eight hours, over the Australian city of Wollongong, December 17, 2016. (Photo by Jason Reed/Reuters)