In the 1920s, the US sold radioactive water as medicine. Called “Radithor Radioactive Water,” it was promised to cure all diseases. Later, it was found to cause cancer and was banned.

Sea lions have a memory that allows them to recognize simple symbols over years, as shown by tests.

Lake Hillier in Australia turns pink once a year! Biologists determined it’s due to Dunaliella salina algae releasing pigment in the salty water.

A rare blue lobster, caught off Maine, stuns with its one-in-two-million odds. Its vivid hue stems from a genetic mutation altering shell pigments.

European eels can migrate 6,000 km to the Sargasso Sea for breeding, proven by tagging studies.

The Voyager spacecraft carries a golden record with Earth’s voices! It was launched in 1977 to tell other civilizations about humanity.

The largest bird nest in the world is in South Africa—a weaver bird nest housing up to 500 birds. It looks like a giant haystack the size of a house and weighs up to 1 ton! The birds build it ove...

Ice cores from Antarctica contain data on volcanic eruptions from the last 740,000 years.

A rare mushroom in Oregon forests glows green in the dark, attracting insects. It’s called ‘foxfire’ due to its eerie light.

The largest cruise ship in the world, Icon of the Seas, launched in 2024. It’s 365 meters long and holds 7,600 passengers. It even has a water park and an ice rink onboard!

Dragon’s blood trees in Madagascar release red sap! Biologists found the red color comes from pigments that protect the tree from pests.

The largest bat colony in the world lives in Bracken Cave, Texas, USA. Every night, 20 million bats fly out to hunt, eating 200 tons of insects! This spectacle draws thousands of tourists.

The largest library in the world, the Library of Congress in the US, holds over 170 million books. If you read one book a day, it’d take 465,000 years to read them all! They even have books the s...

Oxygen makes up 46.6% of the Earth’s crust by mass, being the primary element in silicates.

Mount Etna erupts about 0.1 cubic kilometers of lava per century, measured by geologists.

The Shilin Stone Forest in China’s Yunnan Province amazes with its shapes! Geologists found this is due to limestone erosion creating such shapes.

Humpback whales use bubble nets for hunting, releasing rings of bubbles to trap fish, as demonstrated by studies.

Mount Everest grows by 4 mm each year due to the tectonic movement of the Indian and Eurasian plates.

Geological studies prove that the Grand Canyon formed over 5-6 million years by Colorado River erosion.

Lake Uyuni in Bolivia reflects everything like a mirror! It’s due to a thin layer of water on its salty surface, creating perfect reflections of the sky and mountains.