Coconut crabs produce "tapping-like sounds" to communicate with each other and they make a variety of clicking noises during their entire mating sessions.Wikimedia CommonsScientists discovered that coconut crabs create “tapping-like sounds” to communicate, especially during sex. Turns out humans aren’t the only animals that talk during sex. A new study published in Zoology found that coconut crabs — those “monster” crabs that are strong enough to break a seabird’s bones — are quite chatty during their entire mating sessions.

The teeth also confirmed that Hitler was a vegetarian.TwitterThe four teeth of Hitler’s that were analyzed. Ever since the Fuhrer allagedly perished by his own hand, conspiracy theories have abounded. From believing that Adolf Hitler is alive and well in Argentina to believing that he escaped to the dark side of the moon, it seems more people believed that he was alive than that he was dead. However, a new study claims it will shut down those rumors for good.

Lip Piercings A Morsi tribeswoman dons a lip plate in Ethiopia. Lip piercings are most common in tribal cultures, though only two tribes in Africa (the Dogon and Nuba) use rings. Most use labrets (bars with balls attached at either end) or plates. Dogons pierce their lips to represent the creation of the world. In their mythology, the goddess Noomi wove thread through her teeth, but when it came out, the thread was transformed into speech.

By mapping out how the Walsh glacier had moved over the past eight decades, the expedition was able to pinpoint where explorers had abandoned their equipment, including cameras. Leslie Hittmeier/Teton Gravity ExpeditionIn addition to the cameras, the expedition also found cooking items and climbing gear. Eighty-five years ago, explorers Bradford Washburn and Robert Bates were forced to abandon a number of their supplies, including cameras, as they attempted to summit Canada’s Mount Lucania.

Before Albert Einstein died in April 1955, he told his family he didn't want to be studied. But hours after he perished, a medical examiner stole his brain for research.Wikimedia CommonsWhile analyzing Albert Einstein’s cause of death, an autopisiest famously removed the genius’s brain — without permission from his family. When Albert Einstein was rushed to the hospital in 1955, he knew that his end was near. But the 76-year-old famed German physicist was ready, and he informed his doctors with all the clarity of a math equation that he would not like to receive medical attention.

From 1924 to 1950, Georgia Tann and the Tennessee Children’s Home Society stole and sold an estimated 5,000 children.Special Collections Department/University of MemphisGeorgia Tann. When most people consider a life of thievery and crime, the last thing they’d think of stealing is a baby. Generally speaking, babies are a pain in the neck. And it’s not like you can sell a baby, right? In 20th century Tennessee, some people were doing just that.

As cold-case investigator Paul Holes prepared to retire in March 2018, he secretly tracked down the Golden State Killer who'd been terrorizing California for 40 years. Jose Carlos Fajardo/MediaNews Group/East Bay Times/Getty ImagesPaul Holes nearly knocked on Joseph James DeAngelo’s door to request a DNA sample before his retirement. Paul Holes has become something of a celebrity for his contributions in cracking the Golden State Killer case, which famously remained unsolved for over 40 years until an arrest was made in 2018.

From March 18 to May 28, 1871, a revolutionary government that called itself the Paris Commune controlled the French capital — and changed the country forever.Moloch/Musée CarnavaletA 19th-century illustration of women defending the barricades of the Paris Commune. For 72 short days in 1871, workers controlled the city of Paris. After the devastation of the Franco-Prussian War, Parisian workers were fed up with their country’s government. So they united against their leaders, briefly drove officials out of the city, and created their own government that would live on in socialist imaginations for decades: the Paris Commune.

Does The Hollywood Roosevelt House The Spirit Of Marilyn Monroe? magicredshoes/FlickrThe Hollywood Roosevelt was once a hotspot for celebrities, but today it might be one of the most haunted hotels in the world. The Hollywood Roosevelt in Los Angeles first opened its doors in 1927, the same year that Hollywood produced its first “talkie,” otherwise known as a movie with synchronized sound. According to VICE, the haunted hotel cost $2.5 million to build, which is over $30 million in today’s dollars.

Jonestown was never self-sufficient. Peoples Temple members worked hard to sustain the group's life there — until the day they committed mass suicide.The legacy of Jonestown is often considered a historical warning against the dangers of joining fringe groups, a cautionary tale to be more skeptical, and a lesson not to “drink the kool-aid.” This is certainly rooted in truth and good-natured advice, considering the de-evolution of Jim Jones’ Peoples Temple — and that its exodus to Guyana ended in the largest incident of intentional civilian death in American history until 9/11.