Can fish change their gender?

Can fish change their gender?

Clownfish, wrasses, moray eels, gobies and other fish species are known to change sex, including reproductive functions. A school of clownfish is always built into a hierarchy with a female fish at the top. When she dies, the most dominant male changes sex and takes her place.

Who was the first American president to be impeached?

The impeachment of Andrew Johnson occurred in 1868, when the United States House of Representatives resolved to impeach U.S. President Andrew Johnson, adopting eleven articles of impeachment detailing his “high crimes and misdemeanors”, in accordance with Article Two of the United States Constitution.

What is the highest IQ ever recorded?

William James Sidis is alleged to have had an IQ of 275. With an IQ between 250 and 300, Sidis has one of the highest intelligence quotients ever recorded. Entering Harvard at the ago of 11, he was fluent in more than 40 languages by the time he graduated and worked his way into adulthood.

When was the Leaning Tower of Pisa made?

The Leaning Tower of Pisa took 344 years to build, beginning in August 1173. It began to lean in 1178 once construction on the second floor had begun. The lean was due to one side sinking into the soft ground.

How long was a Roman mile?

The Romans used a unit of distance called the mille passum, which literally translated into “a thousand paces.” Since each pace was considered to be five Roman feet—which were a bit shorter than our modern feet—the mile ended up being 5,000 Roman feet, or roughly 4,850 of our modern feet.

When was the current American flag made?

Two years after he made it, and just one year after the 49 star flag was adopted thanks to the addition of Alaska in January, 1959, Heft’s 50 star flag was made the official U.S. flag design on July 4th, 1960 with Hawaii becoming a U.S. state on August, 1959.

Which president could write in Greek and Latin?

Garfield was the first left-handed president of the United States. James Garfield could write Latin with one hand and Greek with the other, at the same time.

Why is there braille on a drive up ATM?

Drive up ATM buttons contain braille because U.S. regulations require it. The ADA Accessibility Guidelines for Buildings and Facilities says, “Instructions and all information for use of an automated teller machine shall be made accessible to and independently usable by persons with vision impairments.”