The world is much stranger than anything we could invent.

Some frogs freeze solid and come back to life. A day on Venus lasts longer than an entire Venusian year. Somewhere beneath the ocean, an enormous waterfall drops nearly two miles—and one planet could theoretically float in water.

These 20 facts may sound like complete nonsense, but they are absolutely true.

1. Octopuses Have Three Hearts and Blue Blood

Two of an octopus’s hearts move blood through its gills, while the third pumps it throughout the rest of its body.

Its blood is genuinely blue because it uses a copper-based protein called hemocyanin to transport oxygen instead of the iron-based hemoglobin found in human blood. Apparently, eight arms weren’t strange enough. (Smithsonian Ocean)

2. A Day on Venus Is Longer Than a Year on Venus

Venus takes approximately 243 Earth days to rotate once—but only about 225 Earth days to orbit the Sun.

That means a single Venusian day lasts longer than an entire Venusian year. Venus also rotates backward compared with most planets, so the Sun rises in the west and sets in the east. (NASA)

3. An Average Cloud Can Weigh More Than One Million Pounds

Clouds may look light and fluffy, but an average cumulus cloud can contain approximately 1.1 million pounds of water.

It remains in the sky because that weight is distributed across an enormous area and the cloud is less dense than the surrounding air. Still, that is a million-pound object casually floating over your head. (U.S. Geological Survey)

4. Sharks Existed Before Trees

Sharks have been swimming through Earth’s oceans for roughly 450 million years.

The earliest recognizable trees appeared millions of years later. Sharks also predate dinosaurs and have survived several mass-extinction events. (Natural History Museum)

5. Some Frogs Freeze Solid and Return to Life

During the winter, wood frogs can freeze so completely that their hearts stop beating and they stop breathing.

Ice forms around their cells, while natural chemicals protect their organs from permanent damage. When warmer weather returns, the frogs thaw out and continue living as if temporarily becoming a frogsicle were perfectly normal. (National Park Service)

6. Tardigrades Have Survived Exposure to Outer Space

Tardigrades—microscopic creatures also known as water bears—are ridiculously difficult to kill.

Experiments have shown that some can survive exposure to the vacuum and extreme conditions of outer space. They have even spent months attached to the outside of the International Space Station and returned to Earth alive. (European Space Agency)

7. The Human Body Literally Glows

Your body continuously produces tiny amounts of visible light as a byproduct of normal cellular activity.

Unfortunately, the glow is approximately 1,000 times weaker than what our eyes can detect. We are all technically glowing—we just aren’t very impressive at it. (National Institutes of Health)

8. One of the World’s Largest Living Organisms Is a Fungus

Hidden beneath Oregon’s Malheur National Forest is an enormous network of honey fungus.

The organism covers an estimated 2,400 acres and may be at least 2,200 years old. Most of it exists underground, quietly connecting trees and spreading through the forest floor. (U.S. Forest Service)

9. The Moon Is Shrinking

As the Moon’s interior cools, it slowly contracts—much like a grape shriveling into a raisin.

NASA estimates that the Moon has become more than 150 feet thinner over the last several hundred million years. The shrinking creates faults and can trigger moonquakes. (NASA)

10. Some Moonquakes Can Last More Than 10 Minutes

Earthquakes generally settle relatively quickly because water and weathered rock help absorb their energy.

The Moon is much drier and more rigid, allowing vibrations to continue far longer. Some shallow moonquakes can reach a magnitude of approximately 5.5 and last for more than 10 minutes. (NASA)

11. Saturn Could Theoretically Float in Water

Saturn is enormous, but its average density is lower than the density of water.

If someone could somehow build a bathtub large enough—and ignore the many scientific problems involved—Saturn would theoretically float. It is the only planet in our solar system with this distinction. (NASA)

12. The World’s Largest Waterfall Is Under the Ocean

The largest known waterfall on Earth is hidden beneath the Denmark Strait between Greenland and Iceland.

Cold, dense water plunges beneath warmer water, creating an underwater drop of approximately 11,500 feet. That is more than three times the height of the tallest waterfall on land. (NOAA)

13. The Eiffel Tower Changes Size

The Eiffel Tower becomes slightly taller during hot weather because its iron expands.

The increase is usually only a few millimeters, but sunlight can also cause the tower to lean slightly away from the Sun. When winter arrives, the metal contracts and the tower shrinks again. (Official Eiffel Tower Website)

14. Lightning Is Hotter Than the Surface of the Sun

A lightning bolt can heat the surrounding air to approximately 54,000 degrees Fahrenheit.

That is around five times hotter than the surface of the Sun. The air expands explosively from the sudden heat, producing the shockwave we hear as thunder. (NOAA)

15. One Species of Jellyfish Can Reverse Its Life Cycle

When injured or stressed, the jellyfish Turritopsis dohrnii can transform its adult cells and return to an earlier stage of development.

It can then grow into an adult again, potentially repeating the process multiple times. Scientists describe it as potentially biologically immortal—although it can still be eaten, become sick or otherwise die. (Smithsonian Environmental Research Center)

16. Scotland’s National Animal Is the Unicorn

Scotland could have chosen the stag, Highland cow or golden eagle.

Instead, its national animal is the unicorn—a mythical creature associated with purity, strength and independence. Unicorns have appeared in Scottish heraldry for centuries. (VisitScotland)

17. Astronauts Can Grow Taller in Space

Without Earth’s gravity compressing the spine, an astronaut’s vertebrae spread farther apart.

NASA says crew members can become as much as 3% taller while in space. The effect is temporary, and astronauts return to their normal height after coming home. (NASA)

18. Jupiter Has the Largest Ocean in the Solar System

Jupiter’s enormous interior contains an ocean larger than anything found on Earth—but it isn’t made from water.

Extreme pressure compresses hydrogen into a liquid and eventually into a strange electrically conducting form called metallic hydrogen. This gives Jupiter the solar system’s largest known ocean. (NASA)

19. Saturn’s Moon Titan Has Rivers, Lakes and Rain

Titan is the only place beyond Earth known to have stable liquids flowing across its surface.

It has clouds, rain, rivers, lakes and seas—but they are filled with liquid methane and ethane rather than water. Titan is essentially Earth’s deeply frozen and considerably weirder cousin. (NASA)

20. Whales Evolved From Land Animals Related to Hippos

The ancestors of modern whales lived on land more than 50 million years ago.

Over millions of years, they gradually adapted to life in the water. Genetic evidence shows that whales’ closest living relatives are hippopotamuses—which somehow makes both animals seem even stranger. (Smithsonian Ocean)

The World Is Wonderfully Weird

Reality does not always make sense—and that is part of what makes it so damn interesting.

Which fact surprised you the most? Share this article with somebody who refuses to believe that Saturn could float, humans glow or frozen frogs can return to life.

🫎 DOOZYDOO.COM — Make Life Awesome