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Do otters hold hands when they sleep?

Do otters hold hands when they sleep?

Otters are known to hold hands in groups – called a raft – while they eat, sleep and rest, to prevent families losing each other. The furry animals, the largest member of the weasel family, are even known to wrap sea plants around them to secure the bond.

What makes red blood cells and white blood cells?

White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders. All leukocytes are produced and derived from a multipotent cell in the bone marrow known as a hematopoietic stem cell.

Do astronauts get taller in space?

It is a commonly known fact that astronauts living aboard the International Space Station grow up to 3 percent taller while living in microgravity. They return to their normal height when back on Earth.

How many white keys are there on a piano?

Almost every modern piano has 52 white keys and 36 black keys for a total of 88 keys (seven octaves plus a minor third, from A0 to C8). Many older pianos only have 85 keys (seven octaves from A0 to A7). Some piano manufacturers extend the range further in one or both directions.

Why did they use mercury to make hats?

The origin of the phrase, it’s believed, is that hatters really did go mad. The chemicals used in hat-making included mercurous nitrate, used in curing felt. Prolonged exposure to the mercury vapors caused mercury poisoning.

Which is the largest internal organ in the human body?

The largest internal organ is the liver. It is also the heaviest organ, with an average of 1.6 kilograms (3.5 pounds). The largest external organ, which is also the largest organ in general, is the skin.

Which capital city lies on the Potomac River?

George Washington, the first President of the United States, was born in, surveyed, and spent most of his life within the Potomac basin. All of Washington, D.C., the nation’s capital city, also lies within the watershed.

What song did vanilla ice sample?

Ice Ice Baby. “Ice Ice Baby” is a hip hop song written by American rapper Vanilla Ice and DJ Earthquake. The song samples the bassline of “Under Pressure” by Queen and David Bowie, who did not initially receive songwriting credit or royalties until after it had become a hit.

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