Interesting facts about animals

• Just one cow gives off enough harmful methane gas in a single day to fill around 400 liter bottles.
• Cows can have regional accents
• A domestic cat can frighten a black bear to climb a tree.
• In a fight between a polar bear and a lion, the polar bear would win.
• US Secret Service sniffer dogs are put up in five-star hotels during overseas presidential visits.
• Dolphins sleep with one eye open.
• Bulls are color blind.
  
• A cow's only sweat glands are in its nose.
• Mosquitoes have 47 teeth.
• The Poison Arrow frog has enough poison to kill 2,200 people.
• Emus can't walk backwards.
• A group of unicorns is called a blessing.
• A group of kangaroos is called a mob.
• A group of owls is called a parliament.
• A group of ravens is called a murder.
• A group of bears is called a sleuth.
• Twelve or more cows is called a flink.
• A baby oyster is called a spat.
• Some fleas have split penises like a Y shape
• An elephant can be pregnant for up to 2 years
• Chickens can't swallow while they are upside down.
• The average garden-variety caterpillar has 248 muscles in its head.
• A goldfish has a memory span of 3 seconds.
• A mule won't sink in quicksand but a donkey will.
• More people are killed annually by donkeys than in airplane crashes.
• Animal breeders in Russia once claimed to have bred sheep with blue wool.
• Penguins are the only bird that can leap into the air like porpoises.
• India has 50 million monkeys.
• By some unknown means, an iguana can end its own life.
• Americans spend around $3 billion for cat and dog food a year.
• Pigs can cover a mile in 7.5 minutes when running at top speed.
• The shell constitutes 12 percent of an egg's weight.
• A squid has 10 tentacles.
• A snail's reproductive organs are in its head.
• When a horned toad is angry, it squirts blood from its eyes.
• The typical hen lays 19 dozen eggs a year.
• The ostrich has a 46-foot long small intestine.
• A scallop has 35 blue eyes.
• A swan is the only bird with a penis
• The left leg of a chicken in more tender than the right one.
• The only dog that doesn't have a pink tongue is the chow.
• Dogs and humans are the only animals with prostates.
• The giraffe has the highest blood pressure of any animal.
• Zebras can't see the color orange.
• There are more insects in ten square feet of a rain forest than there are people in Manhattan.
• It is possible to lead a cow upstairs but not downstairs.
• The smartest dogs are the Jack Russell Terrier and Scottish Border collie. Dumbest: Afgan hound.
• A rat can go without water longer than a camel can.
• The fat molecules in goat milk are 5 times smaller than those found in cow milk. It takes 20 minutes  for the stomach to breakdown as opposed to the hour that it takes to break down cow milk.