I … really do n’t know what to do with some of this information , TBH .

admonition : This article contains mention of murder , destruction , and self-annihilation . Please proceed with caution .

Recently, redditor u/Ghost-5AVAGE_786asked, “What is your not-so-fun fact?” Users from all around the world shared their less-than-fun facts, which ranged from unpleasant to straight-up dark. Here are 17 of them:

If you ’d like to learn more about a particular topic , sources have been linked out for each fact .

1.Butterflies are attracted to blood, sweat, and tears in the same way they are attracted to nectar.

2.“The low reflective bumper on the rear of an 18-wheeler trailer is called aMansfield Bar. It’s named after actor Jayne Mansfield, who died after her driver ran into the back of a trailer at 2 in the morning in 1967. Jayne, her lawyer, and her children, including 3-year-old Mariska Hargitay, were in the vehicle. The car slid under the trailer and none of the adults survived the crash.”

3.“Horsescan’tthrow up. If they need to throw up, they’ll die.”

4.“There is a condition in which damaged tissue is replaced by bone. People with this condition are slowly consumed by their own skeleton and have to choose which position they want to spend the rest of their life in after a certain point.”

5.“Whale carcassescan explode.”

6.“Judith Barsi, the girl who played Ducky inThe Land Before Time, wasshotin the head by her own father after years of abuse at his hands.”

7.“The first suicide hotline wascreatedafter a man — 23-year-old deacon Chad Varah—conducted the funeral of a 13 or 14-year-old girl. She killed herself after she got her period for the first time and assumed it was an STD, since no one talked about periods at the time.”

8.“There is a whale nicknamed “52Blue” who is the only whale who sings at a frequency of 52 hertz, meaning it can’t communicate with other whales. It is considered the loneliest whale on the planet.”

9.“When bed bugs have sex, the male stabs his barbed penis directly through the female, into her organs.”

10.“The same guy — Thomas Midgley, Jr. —inventedboth leaded petrol and chlorofluorocarbons (CFCs). I’m not sure if there is another single individual in history who caused more damage to the environment.”

11.“Female hyenas have apseudopenisthat they give birth through.”

12.“Bus seats aredesignedso that you can’t tell how dirty they are.”

13.“Dolphins can be sexually attracted to you andwill definitely tryto do something about it.”

14.Some of what doctors know about hypothermia and how to deal with it came from “Nazi science” in WWII.

15.“One of the most common ways to get testicular torsion is just sleeping wrong.”

17.And finally, “Melting permafrost could soon present humanity with deadly diseases that we have no vaccines for.”

Child observing a butterfly resting on their finger, close-up view

Top: A severely damaged vehicle after an accident. Bottom: Jayne Mansfield holding her infant child

White horse standing against a dark background

Various human bones arranged on a black background to resemble a skeleton

Whale bones scattered across a rocky landscape with snow-covered hills in the background

Florence Henderson, Mike Lookinland, Robert Reed, and Susan Olsen posing together on set

Person's hand hanging up an old-fashioned rotary telephone

Underwater view of a humpback whale with visible flippers and tail

Bed bug on a textured surface

Portrait of a man in a vintage suit and glasses looking at the camera

Two hyenas in the wild, one adult and a cub showing affection

Interior of an empty bus with rows of seats and handrails

Dolphin peeking above water surface

Medical team rushing a patient on a stretcher through a hospital corridor

Illustration comparing normal testicular anatomy with testicular torsion, highlighting twisted spermatic cord

Man kneeling beside a goose under an umbrella attached to a small wheeled cart

Icicles hanging from a snowy bank with frozen ground underneath