Octopuses are unique creatures in many ways, one of which is their three hearts. Two of these hearts, called branchial hearts, pump blood to the gills to oxygenate it, while the systemic heart pumps the oxygenated blood throughout the rest of the body. What’s fascinating is that when an octopu

The Eiffel Tower is known to grow taller during the summer months. Made of iron, the tower expands when it absorbs heat, increasing in height by up to 15 centimeters (6 inches). This is due to the physical property of thermal expansion, where materials expand when they are heated. Engineers designed

A common myth is that the Great Wall of China is so large that it can be seen from space with the naked eye, but this is not true. While the Wall is impressive, it is relatively narrow and made of materials that blend in with the surrounding landscape. Astronauts have reported that they cannot see i

Botanically speaking, bananas are classified as berries, while strawberries are not. A berry is defined as a fruit that develops from a single ovary and contains multiple seeds embedded within its flesh. Bananas fit this definition perfectly, as they develop from one flower with multiple ovaries and