Your eyes have a separate immune-system from the rest of your body. Once your body's immune system discovers you have eyes, it will attack and inflame the blood vessels in the back of your eyes. This can lead to your vision decreasing or even going blind.

Sharks have been around for at least 420 million years, meaning they have survived four of the “big five” mass extinctions. That makes them older than humanity, older than Mount Everest, older than dinosaurs, older even than trees. Yet we could potentially see them extinct in our lifetime

Egyptian mummies wouldn’t be so rare today if the Victorian British hadn’t eaten most of them.

Cotard's syndrome, also called "walking corpse syndrome," is a condition wherein the patient believes they are dead, dying, missing parts of their bodies, or don't exist. Some people with Cotard's syndrome may stop speaking or eating since they believe they're dead.

Statistically speaking, if you are a woman and get murdered, it was most likely by a family member, partner or ex-partner, in your own home. If you are a man and get murdered, it was most likely by an acquaintance or stranger, in a public place.

The entire planet could be immediately destroyed by any one of a number of cosmic events that we have no way of seeing or stopping like rogue black holes. Worse...there are some events we can very much see coming, but do absolutely nothing about.

Yellowstone is a giant super volcano. If it blows, things on this planet will go really bad really fast.

You can condition someone with zero personal/family history of mental illness into having some very severe mental illnesses within about a week.

Capgras Syndrome is a mental delusion where you believe that the people closest to you have been replaced by impostors

I read somewhere ( don’t remember where) that you are more likely to be bitten by someone in New York than to be bitten by a shark.

Maximum part of oxygen came from sea/oceans. But people always talks about protecting trees not sea/oceans.

6 nuclear weapons have been lost and never recovered since the 1950s.

idk why this freaks some ppl out, but gelatin is made out of bones. That's right - your melted marshmallow in your hot chocolate is melted animal bone. It's good stuff. That's why the traditional marshmallows aren't vegan or halal...

If given access to it, butterflies will happily drink blood.

Your phone is likely spying on you right now as you're reading this