Earthen pots or matkas have been used to store and cool water since time immemorial. But how do they keep water cool?

Not every cat and mouse game ends with Jerry the mouse winning. And while it is true that a mouse will do everything it can to avoid being eaten by a cat, there exists a microscopic foe that is capable of making mice go against their instincts.

Did you know that there are 583 species of carnivorous plants around the world, which derive nutrition by eating other animals like insects? They are usually found in areas with poor soil quality, like marshes and bogs, that cannot provide these plants with all the nutrition they need. These soils are known to be especially poor in nitrogen. Hence, the plants have evolved the ability to catch and digest insects, which are a good source of protein -- and thus, nitrogen.