字幕表 動画を再生する 英語字幕をプリント Ten things you wish you didn't know. BEAVER ANUS We could be eating food flavored with beaver butt, without even knowing it. Taken from a sac inside the beaver's anus, Castoreum is a slimy brown substance used by the animal to mark its territory. Used in the food industry to enhance the taste of vanilla in foods such as ice cream. Castoreum is hidden under the unassuming title, "natural flavoring". EYELASH MITES For at least 50% of us, millions of microscopic mites are living undetected in the hair follicles all over our body. Called demodex mites, their 2 week life span consists of them mating on our skin, before the female buries deep into a hair follicle to lay her eggs. With no anus, the mite's life ends in a dramatic explosion, where it releases its feces all over our skin. BRAZILIAN WANDERING SPIDER Native to Central and South America, the Brazilian Wandering Spider is the world's most deadliest spider! However, they are on occasion found hiding in groceries around the world. Its venomous bite can kill victims in just two hours or cause painful 4 hour-long erections. Last year, a man in Britain was driven out of his home when he found the spider hiding in a bunch of bananas he'd ordered from the supermarket. FECAL MATTER Fecal matter just seems to get everywhere. A microbiologist has found that some men's beards contain so much fecal matter that they are as dirty as toilets. A study by MythBusters found that the spray from a flushed toilet can contaminate toothbrushes kept in a bathroom with fecal matter. But interestingly, fecal matter was also found on the two toothbrushes kept as a control, in another room. How'd it get there!? OBESITY VIRUS The common virus Ad-36 is thought to be able to cause obesity, by encouraging the body to grow more fat cells. Caught like the common cold, one study found that ten years after having been exposed to the virus. volunteers had a higher body mass index and body fat percentage than those who hadn't been infected. BELLY BUTTON BACTERIA A recent study found 1458 new species of bacteria living in participants' belly buttons. We are taught to have an average of 67 species of bacteria living in our belly buttons alone. One man had bacteria in his belly button which had previously only ever been found in Japanese soil, despite having never been to Japan. Another participant was harboring bacterium that had only ever been known to thrive within ice caps and thermal vents. SHELLAC Ever wondered how they get apples so shinny? Made from the secretion of the kerria Iacca insect, it's used as a food additive. Sprayed on everything from pills to jelly beans to give them an extra shine. Inevitably the bugs themselves get crushed up in the shellac making process, giving our food that extra bite. TREE MAN Human Papilloma Virus (HPV) is a common infection that usually causes small warts to develop on sufferers. Transmitted through sex or infected blood, one man in Indonesia caught the virus after accidentally cutting his knee. Due to his weak immune system the warts sprouted over his body as tree-like growths, known as cutaneous horns. Transforming his hands into yellow branches, 1 meter long. TOXOPLASMA GONDII 1/3 of the world's population is unknowingly infected by the personality-altering parasite, toxoplasma gondii. The parasite is commonly caught from household cats or by eating undercooked meat. And is thought to make men more aggressive and suspicious, while making women more intelligent. However, the parasite is also linked to OCD, schizophrenia and even suicidal behavior. LOTTERY OF LIFE You are more likely be hit by a car, struck by lightning, hit by an asteroid, or killed by flesh-eating bacteria on your way to buying a lottery ticket. than you are to actually win the jackpot in the Mega Millions lottery---the odds of which are 1/176 million. The Euromillions odds are slightly more favorable at 1/116531800.