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The kiwi bird lays an egg weighing about a quarter of its... | funfact.wiki | funfact.wiki
The kiwi bird lays an egg weighing about a quarter of its body weight—proportionally the largest egg in the world. Thanks to this enormous egg, kiwi chicks hatch nearly fully developed and can survive on yolk nutrients for about two and a half weeks after birth.
  • Kiwi
  • Egg
  • Bird
  • New Zealand
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Most birds lack a penis—both sexes mate by pressing a single opening called a "cloaca" together. Ducks are an exception: their corkscrew-shaped penises can reach 42.5 cm, rivaling their body length. Unlike mammals, they achieve erection via lymph fluid in about one second.
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Mammal milk evolved from skin secretions that originally kept eggs moist. The platypus, the only surviving egg-laying mammal, still coats its soft eggs with secretions to prevent drying, and its hatchlings feed on these secretions for nutrition.
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During Japan's 1,200-year meat-eating ban, people devised creative loopholes. They classified rabbits as birds by calling their ears "wings," dubbed wild boar "mountain whale" to pass it off as fish, and claimed ducks were fish because they had webbed feet.
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The distance between Australia and New Zealand exceeds 2,200 km—farther than Seoul to Ulaanbaatar, Mongolia. The sea between the two countries is roughly large enough to fit India entirely.
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New Zealand's Māori did not come from Australia but descend from people who left Taiwan. By canoe through the Philippines and Papua, they reached New Zealand around 1200–1300 CE. Before their arrival, the islands had no humans—and no mammals at all.
  • New Zealand
  • Māori
  • Australia
  • Taiwan
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