do you know ?

•  earth  is not a really a planet.jupitar canswallow 1500earths
• it is possible to see a rainbow as a compleate circle from a air plane
• the crow is cleverest of all birds
• when a hippo potamas gets exited,its sweat becomes read
• the ife span of may-fly is only one day
• the ostrich eats pebbles to help disegestion by grinding up digested food