Facts with the letter "R"

·  Rabbits can suffer from heat stroke.

·  Rabbits do in fact make sounds. When angry, upset, or frightened, a rabbit makes a sort of grunting/whimpering sound. It's actually quite interesting.

·  Rabbits have three eyelids.

·  Racecar spelled backwards is racecar.

·  Radio and TV producer John Guedel was the originator of the musical commercial.

·  Rain falls at 11kmph (7mph)

·  Raindrops aren't actually tear-drop shaped. They are rounded at the top and flat on the bottom.

·  Rats and horses can't vomit.

·  Rats are omnivorous, eating nearly any type of food, including dead and dying members of their own species.

·  Rats can survive without water longer than camels.

·  Rats multiply so quickly that in 18 months, two rats could have over million descendants.

·  Raw coffee beans, soaked in water and spices, are chewed like candy in many parts of Africa.

·  Recent scientific research has shown Duck's quacks DO echo, even though they are commonly thought not to because the echo is can not be heard by the human ear.

·  Red is the most commonly colored vehicle involved in accidents each year. 

·  Red is the most popular car color in the U.S.

·  Red paint is the cheapest color to make.

·  Reindeer milk has more fat than cow milk.

·  Rene Descartes came up with the theory of coordinate geometry by looking at a fly walk across a tiled ceiling.

·  Research indicates that mosquitoes are attracted to people who have recently eaten bananas.

·  Research show that only 43% of homemade dinners served in the US include vegetables.

·  Retail espresso vendors report an increase in decaffeinated sales in the month of January due to New Year's resolutions to decrease caffeine intake.

·  Rhinos are part of the same family as horses.

·  Ribbon worms eat themselves if they cant find food

·  Rice and some other grains contain chemicals that can enhance brain functions.

·  Rice is the staple food of more than one-half of the world's population.

·  Rice paper isn't made from rice but from a small tree which grows in Taiwan.

·  Richard Millhouse Nixon was the first US president whose name contains all the letters from the word "criminal." William Jefferson Clinton is the second.

·  Richard Nixon was the 1st US president to visit China in February, 1972.

·  Roasted coffee beans start to lose small amounts of flavor within two weeks. Ground coffee begins to lose its flavor in one hour. Brewed coffee and espresso begins to lose flavor within minutes.

·  Robert Todd Lincoln (Abraham Lincoln's oldest son) was in Washington DC during his father's assassination as well as during President Garfield's assassination, and he was in Buffalo NY when President McKinley was assassinated.

·  Robert Wadlow is regarded as the tallest man ever known. He was 8'11" at the time of his death at the age of 21.

·  Robert William Thomson, a Scottish engineer, invented the first rubber tire in 1845.

·  Rodents teeth never stop growing.

·  Roger Bannister of Great Britain was the first man to run a mile in under four minutes. On May 6, 1954, he ran the mile in 3 minutes 59.4 seconds.

·  Roman statues were made with detachable heads, so that one head could be removed and replaced by another.

·  Roosters can't crow if they can't fully extend their necks.

·  Rosalind Franklin was the woman behind Watson and Crick's double helix DNA model. She did all the experiments, but died before she was paid credit. Watson and Crick merely took her results and interpreted it.

·  Rubber bands last longer when refrigerated.

·  Rudyard Kipling was fired as a reporter for the San Francisco Examiner. His dismissal letter was reported to have said, "I'm sorry, Mr. Kipling, but you just don't know how to use the English language. This isn't a kindergarten for amateur writers."

·  Rutherford Hayes became U.S. President by one vote.