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Q1324These burrowing Australian marsupials leave behind little cubes — up to a hundred a night — and scientists spent years puzzling over how. A 2019 study found the answer in the wombat's long intestine, whose walls stretch unevenly, moulding soft waste into flat-sided blocks before it dries. The likely purpose is practical: cubes don't roll away, so a wombat can stack them to mark its territory.
Q1325Flamingo chicks hatch grey. Their famous colour comes from pigments called carotenoids in the algae and small shellfish they filter from the water — the same family of compounds that makes carrots orange. A flamingo's diet quite literally shows on its feathers, and a captive bird fed the wrong food will slowly fade to white. You are, in the plainest sense, coloured by what you consume.
Q1326Resting at the surface, sea otters link paws — sometimes in groups of dozens called 'rafts' — so the current doesn't carry them off from one another in the night. Pups are often tethered this way to their mothers. They will also wrap themselves in kelp for the same reason, anchoring against the sea. It is one of nature's plainest images of holding on to keep from being lost.
Q1327Long before video games, Fusajiro Yamauchi opened a small shop in Kyoto in 1889 selling handmade 'hanafuda' flower cards. Nintendo made playing cards for decades, dabbling in taxis, instant rice and love hotels before finding its future in electronic games in the 1970s. It still prints playing cards in Japan today — a company that has quietly outlived most of the industries it was born alongside.
Q1328Two engineers sealed two shower curtains together, trapping air in bubbles, hoping to sell it as a trendy 3D wallpaper. It flopped. They next pitched it as greenhouse insulation — also a flop. Only when IBM began shipping delicate computers did its true calling appear: protective packaging. A product can fail at everything it was designed for and still become indispensable at something no one imagined.
Q1329The earliest cultivated carrots, grown in and around Persia over a thousand years ago, were purple and yellow. The orange carrot we treat as default appeared much later, bred up in the Netherlands around the 16th–17th centuries, and only then spread across the world. The 'normal' colour of a vegetable turns out to be a fairly recent human choice, not a fact of nature.
Q1330Since at least the 1400s the unicorn — a symbol of purity, independence and untameable strength in medieval myth — has been a heraldic emblem of Scotland, and it still appears, chained, on the royal coat of arms. The chain was said to signify a power so fierce that only a king could hold it. A nation chose, quite deliberately, a creature that does not exist to stand for what it values.
Q1331Certain freshwater turtles have a chamber near the tail, the cloaca, lined with blood-rich tissue that can pull oxygen straight from the water. This 'cloacal respiration' lets a few species stay submerged for months through winter without ever surfacing for air. It is one of evolution's stranger solutions — a way to keep breathing without breathing at all.
Q1332The number of distinct chess games is estimated at around 10 to the power of 120 — the 'Shannon number' — while the observable universe holds an estimated 10 to the power of 80 atoms. That means the possibilities hidden inside a single wooden board vastly exceed the entire physical universe. A game with 32 pieces and 64 squares contains more branching futures than reality has building blocks.
Q1333Mosquitoes live on nearly every landmass, including the Arctic — yet Iceland has essentially none. The leading explanation is its unstable climate: Iceland's ponds freeze and thaw unpredictably, and mosquito larvae can't reliably complete their life cycle across those sudden swings. Neighbouring, colder places have them; Iceland's peculiar rhythm of freezes is what keeps them out. Sometimes it's timing, not harshness, that decides who survives.
Q1334Hummingbirds are the only birds that can truly hover and fly backwards, their wings tracing a figure-eight up to 80 times a second. Powering that costs an astonishing amount of energy: their hearts can race past 1,000 beats a minute, and to survive the night they drop into a deep, cold torpor that slows the body almost to a stop. They live their whole lives at the very edge of what a body can sustain.
Q1335Since 1972 the Norwegian King's Guard has adopted a king penguin as its mascot, promoting the bird over the years during ceremonial visits. The current holder, Sir Nils Olav III, was knighted with royal approval in 2008 and has since risen to Major General. Passed down through a line of penguins, the tradition is affectionate and entirely official — soldiers really do parade and salute him.
Q1336In September 1783, before risking a human, the Montgolfier brothers sent up a balloon over Versailles carrying three animals as a test — watched by King Louis XVI and a vast crowd. The eight-minute flight was meant to check whether the air high above was safe to breathe. All three landed unharmed, and two months later humans made the first crewed ascent. Progress, as often, sent the animals first.
Q1337As snow compresses into ice, it traps gases, dust and chemical clues. Antarctic ice cores can preserve climate records up to about 800,000 years, revealing past temperatures, greenhouse gases and volcanic eruptions from air sealed before human history.
Q1338Mangroves soften waves, reduce erosion and shelter coastal life. They also store blue carbon in roots and waterlogged sediments, where it can stay locked away for long periods. A coastline with mangroves is not just prettier; it is physically better defended.
Q1339Peat forms when waterlogged plants decay very slowly. Although peatlands occupy a small share of land, they store a huge amount of soil carbon. When drained or burned, that ancient carbon returns to the air, which is why wet peat can be as climate-critical as forest.
Q1340It is designed as insurance against the loss of crop diversity from war, disaster, disease or neglect, storing duplicate seeds from gene banks around the world. The quiet idea is profound: civilisation depends on seeds, and seeds need memory too.
Q1341UNESCO dates the site to the 10th-9th millennia BCE. Its huge T-shaped pillars suggest that symbolic life, ceremony and cooperation were already powerful forces before writing, kings or settled urban civilisation. It forced scholars to rethink the old timeline in which large sacred spaces came only after farming and states.
Q1342The Neolithic settlement’s dense layout challenges modern assumptions about streets, doors and neighbourhoods. Roof access may have helped organise movement, work and social life in a very different urban pattern. This matters globally because cities did not have to begin like ours. The lesson: human settlement has more than one blueprint.
Q1343A clay tablet from ancient Mesopotamia preserves a customer's complaint about the quality of goods and the treatment he received — and its humour comes from recognition: gripes about service are not a modern invention. Human frustration can outlast empires.
Q1344Printed in China in 868, the scroll proves that the history of printing does not begin with Gutenberg. Woodblock printing was already sophisticated in East Asia centuries earlier, carrying sacred texts across distance and time.
Q1345Printed in Korea in 1377, Jikji is the oldest surviving book printed with movable metal type. Gutenberg transformed Europe, but metal-type printing has a wider world history, and Korea belongs at the center of that story.
Q1346This Siberian rift lake is around 25 million years old and holds a huge share of Earth's unfrozen freshwater. It is less a lake than a living geological archive, with species and sediments that preserve deep time.
Q1347Certain Great Basin bristlecone pines are more than 4,800 years old. Their slow growth in cold, dry, harsh mountains helps them survive where easier-living trees would rot or fail. Longevity here is not abundance; it is discipline under pressure.
