"I can't imagine what an insect infected with a mermithid nematode must feel. Scaled to human size, a mermithid [nematode] would be at least as intrusive as an anaconda coiled among the intestines."BSIP/Universal Images Group/Getty ImagesNematodes, or roundworms, are the most abundant animals on Earth. Nematodes are the most populous animals on Earth but little is known about them. While some species are used to combat crop pests, others can inflict severe damage to the environment, including inside plants and animals.

Source: US Holocaust Museum In addition to her exhaustion and malnourishment, the barracks at Auschwitz had nothing by way of antiseptics, dressings or tools. This meant that Stanislawa had nothing to give women for the pain of childbirth, and all her practices were carefully monitored by Nazi physicians. There were many other Auschwitz medical professionals besides Stanislawa, and they cared for the sick and injured under Nazi guidance. These doctors were instructed to give progress updates on patients, and when a person was not apt to recover, they were immediately taken to the gas chamber.

What happened on this day in history: British explorer Sir Walter Raleigh is beheaded in 1618, the Suez Crisis begins when Israel invades Egypt in 1956, and more landmark events.1618: Sir Walter Raleigh Is Executed Wikimedia CommonsA portrait of Sir Walter Raleigh from 1588. Sir Walter Raleigh is executed in London, England, around the age of 65. Raleigh was a writer, explorer, and once-favorite of Queen Elizabeth I. But after King James I came to power in 1603, he imprisoned Raleigh in the Tower of London for trying to depose him.

What happened on this day in history: The Mayflower departs England for the New World, the Mexican War for Independence begins, and more.1620: The Mayflower Departs England After a failed attempt the previous month, the Mayflower leaves Plymouth, England, and sets sail for the New World with 102 passengers on board. Some of the colonists were entrepreneurs seeking wealth in the New World, but 35 of them were Pilgrims looking for a place to practice their religion free from the Church of England.

A botfly maggot's entire purpose is to mate, procreate, and infest mammals with its larvae.If your worst nightmare is having your body taken over by another life form, then read no further. The botfly has a short albeit gruesome life cycle that involves infesting a host to grow its larva until it matures and pops out of the host’s flesh. Most alarmingly, these maggot-like larvae end up inside human hosts, too.

Whether these creatures are truly horrifying is in the eye of the beholder, but they are all undeniably fascinating.Twitter It only makes sense that scientists would choose to share the most disturbing real-life images of creatures of the deep in honor of Halloween this year, as life in the oceans continues to be of the most mysterious and unexplored. Indeed, if there were monsters anywhere, they’d be here. Scientists that specialize in the depths have demonstrated that it is truly the spookiest place that exists.

From actors who did extensive research to those who chose not to portray the Führer accurately at all, these Hitler movies reveal wildly different takes on modern history's greatest villain.IMDb/2004 Newmarket Films/2015 Amazon Prime VideoLots of actors have tried to get into the mind of Adolf Hitler onscreen — but how did they do it? Many actors have had the desire to dissect the toxic psyche of the man behind one of the worst atrocities in history.

The Famous Ghost Of The Myrtles Plantation Mr. Jason Hayes/FlickrThe Myrtles Plantation by night. In 1992, when the proprietress of Louisiana’s Myrtles Plantation photographed the property as part of an insurance company requirement, something remarkable happened. In between two of the buildings, a figure appeared. A dark, female shape stood upright in the corner. The St. Francisville site naturally had a cruel history of slavery and today it is considered one of the most haunted places in America.

The Strange Disappearance Of The Sodder Children SmithsonianThe billboard was eventually updated with a new photo Jennie Sodder received in the mail. Both parents died without reuniting with their missing children. It was the most wonderful time of the year, yet George and Jennie Sodder would have the worst day of their lives. Tragedy struck Fayetteville, West Virginia on the night before Christmas, 1945, when a fire consumed the Sodder house and killed five of the nine children within.

These unbelievably sexist ads from decades past and present reveal both how far society has come and how much further we need to go.As trite as it is true, sex sells. But sometimes — from our Mad Men past to our Snapchat and smartphone-filled present — advertisers take this truism a little too far, and turn shameless sex into abject sexism. Case in point? These sexist ads: Stacked: a trait microwaves and attractive women apparently have in common "