• The Chollima, a mythical winged horse, is the national animal of North Korea.
  • The volume of blood pumped by the heart can vary over a wide range, from five to 30 liters per minute.
  • Buffalo are capable swimmers and often cross deep water in search of better grazing.
  • Stomach acid is corrosive enough to eat through metal, bone and more.
  • The blood flow in kidneys is higher than the blood flow in the heart, liver, and brain.
  • The shape of ancient Egyptian pyramids is thought to have been inspired by the spreading rays of the sun.
  • A woodpecker can hit a tree trunk 100 times per minute at rates of up to 24 kilometers per hour (15mph).
  • Venus is the second brightest object in the night sky.
  • A bison's hump is composed of muscle, supported by long vertebrae. It allows bison to use its head to plow through snow.
  • In the UK, all horses, ponies and donkeys must have a horse passport.