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★We have mapped more of Mars than of our own ocean floor.★Crows can recognize human faces and hold grudges for years.★A jiffy is an actual unit of time: 1/100th of a second.★A flock of crows is known as a murder.★A group of ferrets is called a business.★Cleopatra lived closer in time to the Moon landing than to the building of the Great Pyramid.★The Statue of Liberty was originally intended to be a lighthouse.★A lion's roar can be heard from up to 5 miles away.★The human brain uses about 20% of the body's total energy.★The world's oldest known recipe is for beer.★A hummingbird's heart can beat up to 1,260 times per minute.★A 'jiffy' is one trillionth of a second in physics.★The moon has moonquakes.★The 'new car smell' is made of dozens of chemicals off-gassing from the interior.★A rhinoceros' horn is made of keratin, the same stuff as hair.★Banging your head against a wall for one hour burns 150 calories.★A blue whale's heart is roughly the size of a small car.★A group of frogs is called an army.★Sea cucumbers breathe through their butts.★The French language has 13 different words for 'kiss'.
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