# 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.
# Bonobos are the only non human primates that engage in oral sex, tongue kissing, and face-to-face genital sex.
# 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.