ZAP’S FACTS!
FACT OF THE DAY
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An octopus has three hearts and blue blood.

Two hearts pump blood to the gills, one to the body - and the main one stops when they swim.

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Animals Creatures big, small & weird 53 FACTS Dinosaurs Giants of the deep past 50 FACTS Ocean The blue two-thirds of Earth 50 FACTS Space Planets, stars & black holes 54 FACTS Human Body The machine that is you 50 FACTS Science How everything actually works 51 FACTS Weather Storms, seasons & skies 50 FACTS Geography & Earth Mountains, rivers & volcanoes 52 FACTS Plants & Nature Trees, flowers & weird greens 50 FACTS History Kings, empires & turning points 50 FACTS Inventions & Tech Bright ideas, gadgets & robots 50 FACTS Vehicles Cars, planes, trains & rockets 50 FACTS Food What we eat & why 50 FACTS Myths & Monsters Gods, dragons & cryptids 54 FACTS Famous People Inventors, explorers & icons 50 FACTS Record-Breakers Biggest, smallest, fastest, oldest 50 FACTS

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Hand-picked questions worth a click.

  1. 01 Why does an octopus have three hearts?
  2. 02 What would happen if you fell into a black hole?
  3. 03 Where do your dreams come from while you sleep?
  4. 04 How big was the biggest dinosaur that ever lived?
  5. 05 Who really invented the light bulb?
📅 19 JUL

ON THIS DAY

July

In 1848, The Seneca Falls Convention began - the first big meeting fighting for women's rights in America. READ THE STORY ▸

BONUS FACTS! 💥

Wombats produce cube-shaped poop so it won't roll away. A day on Venus is longer than its whole year. Neutron-star material is so dense a teaspoon would weigh a billion tons.