Learn to Know These

A cat has 32 muscles in each ear.

A dime( 一角硬币)has 118 ridges around the edge.

A dragonfly(蜻蜓) has a life span(跨度) of 24 hours.

A duck's quack doesn't echo(回声), and no one knows why.

A goldfish has a memory span of three seconds.

A shark is the only fish that can blink(眨眼) with both eyes.

Al Capone's business card said he was a used furniture dealer(商人).

All 50 states are listed across the top of the Lincoln Memorial on the back of the $5 bill.

All of the clocks in the movie "Pulp Fiction" are stuck on 4:20.

All porcupines(箭猪) float in water.

Almonds(杏树) are a member of the peach family.

An animal epidemic(流行的) is called an epizootic(动物流行病).

An ostrich's(鸵鸟) eye is bigger than its brain.

Blueberry Jelly Bellies were created especially for Ronald Reagan.

Camel's milk does not curdle(凝固).

Cats have over one hundred vocal sounds, while dogs only have about ten.

Cats urine(尿) glows under a black light.

Did you know that there are coffee flavored PEZ?

"Dreamt" is the only English word that ends in the letters "mt."

Emus and kangaroos(袋鼠) cannot walk backwards, and are on the Australian coat of arms for that reason.

Facetious(幽默的) and abstemious(有节制的) contain all the vowels in the correct order, as does arsenious(含砒), meaning "containing arsenic."

Hang On Snoopy is the official rock song of Ohio.

If you bring a raccoon's(浣熊) head to the Henniker, New Hampshire town hall, you are entitled(有权) to receive $.10 from the town.

In England, the Speaker of the House is not allowed to speak.

In every episode(段) of Seinfeld there is a Superman somewhere.

In most advertisements, including newspapers, the time displayed on a watch is 10:10.