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24 Useless Facts That You Really Don’t Need To Know

19. Cats only meow for human interaction and not as communication among other cats.

cats only meow to humans
Image source: giphy

Bradshaw, the author of Cat Sense, asserts that cats and their humans develop a secret language of meows. He claims that cats don’t really meow to communicate with other cats. During his research in his observations of feral cats, he said, “you get a meow about once every hundred hours. They’re very silent. And yet domesticated cats, as you know if you’ve got one, will often meow their little heads off, all day long. People think of it as an absolutely classic cat behavior but it’s something they’ve learned to do to get our attention, It’s really something they’ve adopted as a way of communicating with humans.”(source

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20. There are two types of belly buttons: “innies” and “outies”. Only 4% of people have “outies” out of total worldwide population.

Belly buttons
Image sources: www.wisegeek.org, Charla

In a research led by Jiri Hulcr, Ph.D., a postdoctoral research assistant, participants were asked whether they had “innies” or “outies.” Only 4 percent of those studied said they had outie-shaped belly buttons. According to Indianapolis plastic surgeon Barry Eppley, MD, the ultimate shape of the belly button depends on a number of factors, including how the scar attaches to underlying muscles, the looseness of surrounding skin, the fat under the skin, and how flat or protruding the belly is. The belly button shape could, however, change under one special circumstance, pregnancy. The expansion of the abdomen can cause some “innie” belly buttons to pop out and become “outies”, and then after birth, the belly button often retracts to its former shape. (source)

21. Dead bodies can get goosebumps too. 

goosebumps
Image source: telegraph.co.uk

After a person dies, the initial process of decomposition known as rigor mortis begins in which the joints and muscles of a body stiffen. The muscles contract and this causes the body to stiffen up. The tiny muscles just below the hair follicles also contract. When these muscles contract, the hairs stand on edge giving the appearance that the dead person has goosebumps. While goosebumps on dead bodies can occur, it is far from a common occurrence. Though the mechanism is the same as with the living, the trigger is not the same. Living people get goosebumps during cold or while experiencing strong emotions such as fear or excitement.(source)

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22. A peak of Mount Everest was calculated to be exactly 29,000 feet high but was publicly declared to be 29,002 feet in order to avoid the impression that an exact height of 29,000 feet was nothing more than a rounded estimate.

Mount Everest
Image source: wikipedia

In 1856, the Great Trigonometric Survey of British India established the first published height of Mt. Everest, then known as Peak XV, at 29,000 feet, but was publicly declared to be 29,002 ft, in order to avoid the impression that an exact height of 29,000 feet was nothing more than a rounded estimate. The current official height of 29,029 feet, as recognized by Nepal and China, was established by a 1955 Indian survey and subsequently confirmed by a Chinese survey in 1975.(source)

23. The first name of Minnie Mouse isn’t “Minnie”. That is her nickname. Her real first name is “Minerva”.

Minnie Mouse and Donald duck
Image source: disneypix.com

Minerva “Minnie” Mouse is an animal cartoon character created by Ub Iwerks and Walt Disney. She was first drawn by Iwerks in 1928. The Gleam, a comic strip story published in 1942 by Merrill De Maris and Floyd Gottfredson, first gave her full name as Minerva Mouse. Also, Donald Duck’s middle name is “Fauntleroy”.(source)

24. Some species of turtles can breathe underwater through their anus.

Bum breathing turtle
Image credit: Craig Latta, www.turtles.net.au

Some species of turtles even when submerged can pick up oxygen. In water, they slow their metabolism down so much that they barely need any oxygen. Turtles have a cloaca, which is the all-in-one opening for defecation, urination, reproduction, and egg-laying. They take a small amount of water into their cloaca, absorb the air in the water, use it and then expel it. Like most reptiles, they do have lungs which take in air through the mouth and nose. One of these turtles is the Fitzroy River turtle, which can stay underwater, ingest water through the cloacal opening, and extract oxygen for use in its system.(source)

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