★A blue whale's heart is roughly the size of a small car.★A group of crows mobbing a predator is literally called a 'murder patrol'.★Octopuses have three hearts and blue blood.★Polar bears have black skin under their white fur.★Sea otters hold hands while sleeping so they don't drift apart.★The Eiffel Tower can grow up to 6 inches taller during summer.★Sloths can hold their breath longer than dolphins can.★The dot over the letter 'i' is called a tittle.★Voice actors for Mickey and Minnie Mouse got married in real life.★The Great Wall of China is not visible from space with the naked eye.★Your stomach gets a new lining every 3 to 4 days, otherwise it would digest itself.★The shortest commercial flight in the world lasts just 57 seconds.★The first oranges weren't orange, they were green.★Rats laugh when tickled.★Vincent van Gogh only sold one painting during his lifetime.★A group of frogs is called an army.★Ostriches can run faster than horses.★Pigs can't look up at the sky without rolling over.★A rhinoceros' horn is made of keratin, the same stuff as hair.★In Switzerland it is illegal to own just one guinea pig.
★A blue whale's heart is roughly the size of a small car.★A group of crows mobbing a predator is literally called a 'murder patrol'.★Octopuses have three hearts and blue blood.★Polar bears have black skin under their white fur.★Sea otters hold hands while sleeping so they don't drift apart.★The Eiffel Tower can grow up to 6 inches taller during summer.★Sloths can hold their breath longer than dolphins can.★The dot over the letter 'i' is called a tittle.★Voice actors for Mickey and Minnie Mouse got married in real life.★The Great Wall of China is not visible from space with the naked eye.★Your stomach gets a new lining every 3 to 4 days, otherwise it would digest itself.★The shortest commercial flight in the world lasts just 57 seconds.★The first oranges weren't orange, they were green.★Rats laugh when tickled.★Vincent van Gogh only sold one painting during his lifetime.★A group of frogs is called an army.★Ostriches can run faster than horses.★Pigs can't look up at the sky without rolling over.★A rhinoceros' horn is made of keratin, the same stuff as hair.★In Switzerland it is illegal to own just one guinea pig.