Hygiene

With a tongue that can extend up to 20 inches, a giraffe possesses the remarkable ability to reach its own ears and even behind them for cleaning. This flexibility is another unique adaptation of their incredibly long and dexterous tongue.

Known as "washlets," these advanced toilets feature customizable water jets, air dryers, and even automatic lid opening, making bathroom experiences surprisingly luxurious and hygienic.

Before its invention, people used a variety of materials including leaves, moss, sponges on sticks, and even corn cobs. Wealthier individuals in ancient times might have used wool or linen.

Roman citizens, particularly those who could afford it, believed the ammonia in urine was an effective antiseptic and teeth whitener. This practice, though repulsive by modern standards, was common and even taxed by emperors, highlighting different historical perceptions of hygiene.