Do Polar Bears Get Lonely?: And Answers to 100 Other Weird and Wacky Questions About How the World Works

By New Scientist

Amazing and interesting questions and solutions from the workforce in the back of the overseas phenomenon Why do not Penguins' toes Freeze?

The popular-science journal in the back of the runaway foreign bestsellers Why do not Penguins' toes Freeze? and Does whatever devour Wasps? takes on one other impossible to resist batch of the unusual, foolish, and mind-boggling questions that plague curious minds across the world:
- Can pigeons sweat, can fish get thirsty, and will bugs get fat?- may possibly an individual devote the appropriate homicide by way of killing anyone the day after receiving a whole blood transfusion?- Is there how to beat the percentages of the lottery through the use of math?- How a lot mucus does a nostril produce throughout the normal cold?- If pressured to devour elements of your self to outlive, which non-vital organs stands out as the so much nutritious?
Culled from New Scientist's well known "The final be aware" column and edited through Mick O'Hare, the writer of How to Fossilize Your Hamster, Do Polar Bears Get Lonely? is bound to amuse and amaze up to it informs.

(And if a polar endure seems to be lonely, it most likely capacity there wasn't adequate walrus for dinner.)

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Many should be visible to fly immediately earlier with out deviating one iota. Others fly into the lighted zone, land, and remain nonetheless, as they might if it have been da co2lytime. various species appear to have diversified sensitivities, the main delicate ones alighting the farthest from the sunshine. nonetheless different moths circle the sunshine, by no means bumping into it. those who do fly towards the sunshine usually accomplish that in a wild and harassed demeanour. they appear disoriented and stressed by means of a brilliant mild instead of interested in it. similar to Fabre’s interference with the caterpillar, the sunshine turns out to set off beside the point habit, as the bugs don't have any mechanism to house it. there's just one form of saw habit that turns out applicable, and that's moths relocating towards a lighted window at evening. Any bugs trapped in a room will fly to the window. intuition tells them that during order to flee from a restrained house they must fly to the place it truly is lightest, or even at evening it's lighter outdoors than inside of a cave or a hollow space the place the moth has been hidden in the course of the day. The moth reveals its manner out by means of flying towards that mild. So a moth wouldn't be capable to distinguish among a vibrant mild resource and an open area. it may well good be this mechanism that's working whilst moths fly to shiny lighting fixtures; despite the fact that, the various different elements indexed above appear to counter this view. Terence Hollingworth i've got noticeable this query requested again and again and replied in as many ways, yet i've got but to discover a solution as appealing as that which I first learn in Ian McEwan’s novel Atonement (New York: Nan A. Talese Books/Scribner, 2002), now a huge motion picture, that's set within the Nineteen Thirties and Nineteen Forties. by the way, regardless of its extra old atmosphere within the novel, i think the idea originates from 1972 and Henry Hsiao, a biomedical engineer. placed easily, nocturnal moths fly towards darkish areas and with simply easy light-sensing gear they understand the world in the back of and past any aspect of sunshine, corresponding to a light-bulb, as being the darkest round. unfortunately, this concept doesn't appear to be shared by way of entomologists and hasn't ever been proven experimentally. Rob Jordan SWEAT at the WING Do pigeons sweat? If now not, why now not? category 3L, Hungerford fundamental college, London in basic terms mammals have sweat glands—so no, pigeons don't sweat. Nor do mammals similar to cats, whales, and rodents, that have misplaced such a lot or all in their eccrine sweat glands—the ones that we use in laying off heat—while birds by no means constructed them. In sweat-free mammals the kidneys take care of the excretory features of sweat, and flushing or panting is how they cool themselves down. As one other instance of evaporative cooling, an over-hot cat not just pants but in addition moistens its fur with saliva. chook skins are dry. in spite of the fact that, as birds have physique temperatures which are usually numerous levels greater than these of mammals, they don't want a similar skill to lose warmth. after they do have to lose warmth, they could elevate their down feathers to chill the surface by means of ventilsinnnn Dation.

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