★A day on Jupiter lasts only about 10 hours.★The human brain uses about 20% of the body's total energy.★A flock of crows is known as a murder.★Avocados are toxic to most animals except humans.★Scotland's national animal is the unicorn.★The world's oldest known recipe is for beer.★A bolt of lightning is five times hotter than the surface of the sun.★Banging your head against a wall for one hour burns 150 calories.★A day on Mercury lasts 59 Earth days.★Pigs can't look up at the sky without rolling over.★A group of frogs is called an army.★There's a species of jellyfish that is immortal.★A group of ferrets is called a business.★An octopus has nine brains.★A blue whale's heart is roughly the size of a small car.★Antarctica is the only continent without native reptiles or snakes.★Pigeons can recognize themselves in a mirror.★The first computer mouse was made of wood.★In Switzerland it is illegal to own just one guinea pig.★A group of jellyfish is called a smack.
★A day on Jupiter lasts only about 10 hours.★The human brain uses about 20% of the body's total energy.★A flock of crows is known as a murder.★Avocados are toxic to most animals except humans.★Scotland's national animal is the unicorn.★The world's oldest known recipe is for beer.★A bolt of lightning is five times hotter than the surface of the sun.★Banging your head against a wall for one hour burns 150 calories.★A day on Mercury lasts 59 Earth days.★Pigs can't look up at the sky without rolling over.★A group of frogs is called an army.★There's a species of jellyfish that is immortal.★A group of ferrets is called a business.★An octopus has nine brains.★A blue whale's heart is roughly the size of a small car.★Antarctica is the only continent without native reptiles or snakes.★Pigeons can recognize themselves in a mirror.★The first computer mouse was made of wood.★In Switzerland it is illegal to own just one guinea pig.★A group of jellyfish is called a smack.