The Earth's Magnetic Field: Earth's magnetic field protects us from solar radiation and is constantly shifting, with the magnetic north pole moving towards Russia.
Octopus Intelligence: Octopuses have three hearts and blue blood, and are known for their remarkable problem-solving skills and ability to escape enclosures.
Longest Animal Migration: The Arctic Tern holds the record for the longest migration of any animal, traveling up to 71,000 kilometers (44,000 miles) each year between the Arctic and Antarctic.
Human Brain Power: The human brain generates about 20 watts of electrical power, enough to power a dim light bulb.
Underwater Waterfall Illusion: The phenomenon known as the "underwater waterfall" in the Maldives is actually an optical illusion caused by the movement of sand and water currents.
Venus' Day: A day on Venus (the time it takes for Venus to rotate once on its axis) is longer than a year on Venus (the time it takes to orbit the Sun), lasting about 243 Earth days.
The Eiffel Tower's Growth: The Eiffel Tower can grow up to 6 inches (15 cm) in the summer due to the expansion of iron from the heat.
The Great Wall of China: Contrary to popular belief, the Great Wall of China is not visible from space with the naked eye; it's an optical illusion due to its width and the varying terrain.