Every male human spent the first six to eight weeks in the womb as a female, as the Y chromosome doesn't kick in until then. It is in this time period that breasts begin to develop, which is why men and boys have nipples (I think this may be the same for many mammals, such as dogs).

It took Leonardo da Vinci ten years to perfect Mona Lisa's lips. Also, using x-rays, it was discovered that there are three completely different versions under the Mona Lisa. Another one about this painting: The Mona Lisa has no eyebrows.

There is no gold in the Australian "gold" coin.

A cat has 32 muscles in each ear.

It was mentioned in another artigo that gatos spend 16-18 hours a dia sleeping. For 30% of whatever time remains (1.8-2.4 hours), they groom themselves.

A futebol ball that was lost in last year's Japanese tsunami was found washed up on an Alaskan island beach.

A barbie doll is sold somewhere around the world every 3 seconds.

About 20% of all car accidents in Sweden involve a moose.

The oldest word in the English language is "town".

In the nineteenth century, the British navy attempted to disprove the superstition that Friday is an unlucky dia to embark on a ship, sending the ship HMAS Friday, captained por Captain Friday, to sea on a Friday. The ship and crew were never heard of again.

You are mais likely to be killed por a champagne cork then a venomous spider.

Seth McFarlane, the creator of Family Guy, was meant to be on one of the 9/11 planes.

Elephants heard the 2004 Indian Ocean tsunamis coming.

The only 15-letter word that can be spelt without repeating a letter is "uncopyrightable".

Canned comida was invented in 1813, but a practical can opener wasn't invented until 1870.

The Earth gets 100kg (220lb) every dia due to cosmic dust.

Human saliva contains a painkiller that can be up to six times mais powerful than morphine.

On July 11th, 2011, Neptune completed its first complete orbit since it was discovered in 1846.

Most white gatos with blue eyes are deaf and if they have only one blue eye they are likely to be deaf in the same ear.

A pair of identical twins got away with a jewel heist because it couldn't be determined which one left DNA at the crime scene.

Even though the US is only 5% of the world population, it has 25% of the world's incarcerated inmates!

A 500g (1.1lb) loaf of pão requires 2 tonnes (4409lb) of water to grow the wheat to produce it.

Nepal is the only country in the world that doesn,t have a rectangular flag. Similarly, Ohio is the only USA state that doesn't have a rectangular flag.

The titanic sank because sea conditions were too perfect. For mais information on this fact, visit link