The human brain is the only brain that shrinks with age. Humans are the only animals that get dumb when they get older. Other animals’ senses would get dull, but they retain the same brain mass.
100 Mind-Blowing Retain Facts
Dogs like squeaking toys because they sound like their prey. Dogs are known to have a fixation on squeaky toys. Although dogs have been domesticated by man, they still retain some of their animal instincts – which is why squeaky toys stimulate them. Squeaky toys almost sound like small prey screaming for their life. Now that’s one of the WTF facts you could’ve lived without ever knowing.
Graffiti writers have what’s called a “black book,” which is a sketchbook where they draw and plan out prospective graffiti artwork. Writers use their black books to fine-tune their style and retain any ideas they may have for potential future use as a graffiti piece.
Money Is Dirtier Than You Think: Both paper currency and coins can carry viruses and bacteria that can live on surfaces and easily transfer to your skin or onto other objects after touching them. Research has found physical currency changes hands at least 55 times a year or almost once a week. One recent study found banknotes made with cotton or linen fibres, such as U.S. dollar bills, present increased areas for germs and the capacity to retain moisture, which can make it an easier place for bacteria to thrive.