★Polar bears have black skin under their white fur.★The Statue of Liberty was originally intended to be a lighthouse.★Octopuses have three hearts and blue blood.★Cashews grow on the outside of a fruit, not inside a shell.★A group of jellyfish is called a smack.★Pteronophobia is the fear of being tickled by feathers.★Dolphins sleep with one eye open.★A bolt of lightning is five times hotter than the surface of the sun.★The Eiffel Tower can grow up to 6 inches taller during summer.★The shortest commercial flight in the world lasts just 57 seconds.★Ketchup was once sold as medicine in the 1830s.★A day on Jupiter lasts only about 10 hours.★Pigeons can recognize themselves in a mirror.★The Hawaiian alphabet has only 13 letters.★The shortest war in history lasted 38 to 45 minutes between Britain and Zanzibar.★The Dutch were once the tallest people in the world.★You can hear a blue whale's heartbeat from more than two miles away.★It is physically impossible to hum while holding your nose.★The Mona Lisa has no eyebrows or eyelashes.★A cloud can weigh more than a million pounds.
★Polar bears have black skin under their white fur.★The Statue of Liberty was originally intended to be a lighthouse.★Octopuses have three hearts and blue blood.★Cashews grow on the outside of a fruit, not inside a shell.★A group of jellyfish is called a smack.★Pteronophobia is the fear of being tickled by feathers.★Dolphins sleep with one eye open.★A bolt of lightning is five times hotter than the surface of the sun.★The Eiffel Tower can grow up to 6 inches taller during summer.★The shortest commercial flight in the world lasts just 57 seconds.★Ketchup was once sold as medicine in the 1830s.★A day on Jupiter lasts only about 10 hours.★Pigeons can recognize themselves in a mirror.★The Hawaiian alphabet has only 13 letters.★The shortest war in history lasted 38 to 45 minutes between Britain and Zanzibar.★The Dutch were once the tallest people in the world.★You can hear a blue whale's heartbeat from more than two miles away.★It is physically impossible to hum while holding your nose.★The Mona Lisa has no eyebrows or eyelashes.★A cloud can weigh more than a million pounds.