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

In 1983, Australia discovered the oldest human footprints—20,000-year-old tracks. They belonged to a group of hunters, with their prey’s tracks nearby. It’s like a time machine showing ancien...

An underground city, Derinkuyu, with rooms and streets, was found in Cappadocia, Turkey! Archaeologists determined it was built in the 8th century BCE for protection from enemies.

The chemical reaction of methane (CH₄) combustion produces CO₂ and H₂O, widely used in energy production.

A rare ‘sapphire hawk’ in Colombia hunts at sunset. Its wings shimmer blue like a gemstone.

The world’s longest tunnel, the Gotthard Base Tunnel in Switzerland, is 57 km long. It runs under the Alps, with trains speeding through at 250 km/h. Construction took 17 years and cost $12 billi...

The chemical reaction of photosynthesis converts CO₂ and H₂O into glucose and O₂ using chlorophyll.

The world’s oldest working lighthouse is in Spain—the Tower of Hercules. Built during the Roman Empire about 1,900 years ago, it still guides ships today. Its stone walls have withstood centuri...

The chemical element fluorine is the most reactive of all, reacting even with noble gases under specific conditions.

The chemical reaction of iron oxidation creates rust, accelerated by the presence of water and oxygen.

The asteroid belt between Mars and Jupiter contains about 1.9 million asteroids larger than 1 km.

In Finland, ‘ice patterns’ on lakes are created by wind and frost. They look like natural paintings.

The largest animal migration in the world is the Arctic tern’s flight. They fly 40,000 km each year from the Arctic to Antarctica and back. These birds see more sunlight than any other creature o...

Earth’s magnetosphere protects the planet from solar wind, preventing atmospheric loss as seen on Mars.

Ancient cave paintings in Lascaux, France, date back 17,000 years, determined by radiocarbon dating.

A tiny spider in Peru weaves webs shaped like larger spiders to scare off predators. This ‘puppet’ is made from leaves and dead insects.

The Quilon River in India appears only once every 10 years and flows for a few days! Geologists discovered its water drains into underground cavities due to tectonic movements.

Lights over the sea off Norway’s coast predict storms! Meteorologists explain this as atmospheric electrical discharges before a storm.

Archaeological finds in China revealed silk use 8,500 years ago, confirming textile technologies.

The largest tree in the world by volume, Árbol del Tule in Mexico, has a 14-meter diameter. This 2,000-year-old cypress is considered sacred by locals. Its canopy can shelter 500 people!