★A rhinoceros' horn is made of keratin, the same stuff as hair.★Crows can recognize human faces and hold grudges for years.★A hippo's sweat is pink.★A flock of crows is known as a murder.★Dolphins sleep with one eye open.★A bolt of lightning is five times hotter than the surface of the sun.★The Statue of Liberty was originally intended to be a lighthouse.★The world's oldest known recipe is for beer.★More than half of all people alive today have never made a phone call.★Your nose can remember 50,000 different scents.★A blue whale's tongue can weigh as much as an elephant.★Hot water freezes faster than cold water. This is called the Mpemba effect.★The smell of rain has a name: petrichor.★The average person spends six months of their life waiting for red lights to turn green.★Butterflies taste with their feet.★Vincent van Gogh only sold one painting during his lifetime.★A newborn panda is smaller than a mouse.★Sharks existed on Earth before trees did.★In Switzerland it is illegal to own just one guinea pig.★A group of porcupines is called a prickle.
★A rhinoceros' horn is made of keratin, the same stuff as hair.★Crows can recognize human faces and hold grudges for years.★A hippo's sweat is pink.★A flock of crows is known as a murder.★Dolphins sleep with one eye open.★A bolt of lightning is five times hotter than the surface of the sun.★The Statue of Liberty was originally intended to be a lighthouse.★The world's oldest known recipe is for beer.★More than half of all people alive today have never made a phone call.★Your nose can remember 50,000 different scents.★A blue whale's tongue can weigh as much as an elephant.★Hot water freezes faster than cold water. This is called the Mpemba effect.★The smell of rain has a name: petrichor.★The average person spends six months of their life waiting for red lights to turn green.★Butterflies taste with their feet.★Vincent van Gogh only sold one painting during his lifetime.★A newborn panda is smaller than a mouse.★Sharks existed on Earth before trees did.★In Switzerland it is illegal to own just one guinea pig.★A group of porcupines is called a prickle.