Too lazy to put in all the links...

A goldfish has a memory span of three seconds.

Don't buy that. My fish sure as heck remember me when I show up with the food.

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

Actually, the memorial was built when there were only 48 states. There is a plaque commemorating the other two.

Babies are born without kneecaps. They don't appear until the child reaches 2 to 6 years of age.

They have kneecaps. Just cartilage ones that get bony at about three years.

Cats have over one hundred vocal sounds. Dogs only have about 10.

Don't buy this one either. My dog has many different noises. I can tell by the type of bark what she's barking at.

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

A fact hitherto undreamt of. Okay, that was cheating.

February 1865 is the only month in recorded history not to have a full moon.

February 1999.

In the last 4,000 years, no new animals have been domesticated.

That's a bit fuzzy. Depends on how domestication is defined, and how you would define "new animal." I assume "cow" would have to be defined very broadly.

If the population of China walked past you, in single file, the line would never end because of the rate of reproduction.

Actually, somebody worked out the math on this, and at the present rate of reproduction, the last one would go by in about fifty years. Others have come up with figures as low as thirty years.

It's impossible to sneeze with your eyes open.

I can. You have to try, though.

No word in the English language rhymes with month, orange, silver, or purple.

"Chilver" is a type of lamb, Oxford English Dictionary. "Hirple" is a Scottish word meaning "to walk lamely."

On a Canadian two dollar bill, the flag flying over the Parliament building is an American flag.

Myth.

"Stewardesses" is the longest word typed with only the left hand and "lollipop" with your right.

TETRASTEARATES and PHYLLOPHYLLIN.

The cruise liner, QE2, moves only six inches for each gallon of diesel that it burns.

More like thirty feet.

The winter of 1932 was so cold that Niagara Falls froze completely solid.

Niagara Falls freezes into a "bridge" now and then, but water flow underneath continues.

There's no Betty Rubble in the Flintstones Chewables Vitamins.

There is now. They dumped the car recently to put her in.

Winston Churchill was born in a ladies' room during a dance.

Not true. The place he was born (Blenheim Palace) didn't even have public restrooms.

Women blink nearly twice as much as men.

Myth.