There is a sea squirt (found in the seas near Japan) that digests its own brain. When the sea squirt is mature it permanently attaches itself to a rock. At this point it does not need to move anymore and has no need for a brain.
Some ribbon worms will eat themselves if they can't find any food.
A ducks quack does not echo.
1 in 5,000 north Atlantic lobsters are born bright blue.
An ant's sense of smell is as good as a Dog's.
A Horse has 18 more bones than a Human.
Elephants are the only Mammals that can't jump.
A polar bears skin is black. Its fur is not white, but actually clear.
Polar bears are left handed.
Polar bears are the only mammal with hair on the soles of its feet.
Rats can't vomit.
Giraffes have no vocal chords.
The giraffe has a black tongue which is 14 inches long.
A giraffe and rat can go longer without water than a camel can.
A chameleon's tongue is twice the length of its body.
A full-grown bear can run as fast as a horse.
The world smallest mammal is the bumblebee bat of Thailand, weighing less than a penny.
A Dalmatian is the only dog that can get gout.
Humans and Dolphins are the only species that have sex for pleasure.
The snail mates only once in it's entire life.
You can tell the sex of a turtle by the sound it makes, A male grunts, A female hisses.
Male bees will try to attract sex partners with orchid fragrance.
An oyster can change it's sex a number of times during its life.
Some lions mate 50 times a day.
All the swans in England are property of the Queen.
An ostrich's eye is bigger than it's brain.
A hedgehog's heart beats 300 times a minute on average.
A blue whales heart only beats nine times per minute.
A crocodile cannot stick its tongue out.
A crocodile can't move its tongue.
A crocodiles tongue is attached to the roof of its mouth.
The ant can lift 50 times its own weight.
The flea can jump 350 times its body length.
A cockroach can live nine days without its head before it starves to death.
A starfish can turn its stomach inside out.
Starfish's have no brains.
A cat has 32 muscles in each ear.
A cat has 4 rows of whiskers.
The cheetah is the only cat that can't retract its claw.
A lions roar can be heard from five miles away.
Cats have over 100 vocal sounds, while dogs have about 10.
A hippopotamus can run faster than a man can.
A horse can sleep standing up.
A jellyfish is 95% water.
Butterflies taste with their feet.
A millipede has 4 legs on each segment of its body.
A cat uses it's whiskers to determine if a space is too small to squeeze through.
A rhinoceros horn is made of compacted hair.
Rhinos are part of the same family as horses.
Rodents teeth never stop growing.
A shark can detect one part of blood in 100 million parts of water.
A shark can grow a new set of teeth in a week.
Slugs have four noses.
Owls are one of the only birds that can see the color blue.
The penguin is the only bird that can swim but can't fly.
Sharks are immune to cancer.
The oldest goldfish lived for 14,795 days.
If a shark's mouth is open to long it will suffocate.
Anteaters prefer termites to ants.
Rabbits can suffer from heat stroke.
The placement of a donkey's eyes in its' head enables it to see all four feet at one time.
Camels have three eyelids to protect themselves from blowing sand.
If you keep a Goldfish in the dark room it will turn white (eventually).
The common goldfish is the only animal that can see both infrared and ultra-violet light.
A pregnant goldfish is called a twit.
A goldfish has a memory span of three seconds.
The praying mantis is the only insect that can turn its head.
Cat urine glows under a black light.
Cats sleep 16 to 18 hours per day.
Reindeer milk has more fat than cow milk.
Baby robins eat 14 feet of earthworms every day.
The average housefly lives for only two weeks.
Flies jump backwards when they take off.
Hamsters blink one eye at a time.
Texas horned toads can shoot blood out of the corners or their eyes.
Dolphins sleep with one eye open.
Honeybees have hair on their eyes.
The katydid bug hears through holes in its hind legs.
Bees have five eyes.
A snail can sleep for 3 years.
It is against the law to have a pet in Iceland.
A zebra is white with black stripes.
The waste produced by one chicken in its lifetime can supply enough electricity to run a 100-watt bulb for 5 hours.
Camel's milk does not curdle.
Scorpions can withstand 200 times more nuclear radiation than humans can.
The regular garden variety caterpillar has 248 muscles in its head.
It is possible to lead a cow upstairs, but not downstairs.
A kangaroo can't jump unless it's tail is touching the ground.
Kangaroos and emus cannot walk backwards, and are on the Australian coat of arms for that reason.
The Australian emu holds the land speed record for birds (31 mph).
A kangaroo can jump up to 3 meters high and leap up to 8 meters.
Dolphins don't automatically breath; they have to tell themselves to.
Dolphins sleep with one eye open.
No two lions have the same pattern of whiskers, like a fingerprint.
The male scorpion fly gets other males to bring him food by imitating a female fly.
The poison arrow frog has enough poison to kill about 2,200 people.
The Queen termite can live up to 50 years and have 30,000 children every day.
A cockroaches favorite food is the glue on the back of stamps.
A Cheetah at full speed takes strides of 8 meters.
A shark can detect one part of blood in 100 million parts of water.
A shark can grow a new set of teeth in a week.
Slugs have four noses.
Owls are one of the only birds that can see the color blue.
The penguin is the only bird that can swim but can't fly.
Sharks are immune to cancer.
The oldest goldfish lived for 14,795 days.
If a shark's mouth is open to long it will suffocate.
Anteaters prefer termites to ants.
Rabbits can suffer from heat stroke.
The placement of a donkey's eyes in its' head enables it to see all four feet at one time.
Camels have three eyelids to protect themselves from blowing sand.
If you keep a Goldfish in the dark room it will turn white (eventually).
The common goldfish is the only animal that can see both infrared and ultra-violet light.
A pregnant goldfish is called a twit.
A goldfish has a memory span of three seconds.
The praying mantis is the only insect that can turn its head.
Cat urine glows under a black light.
Cats sleep 16 to 18 hours per day.
Reindeer milk has more fat than cow milk.
Baby robins eat 14 feet of earthworms every day.
The average housefly lives for only two weeks.
A dragonfly has a life span of 24 hours.
Flies jump backwards when they take off.
Hamsters blink one eye at a time.
Texas horned toads can shoot blood out of the corners or their eyes.
Dolphins sleep with one eye open.
Honeybees have hair on their eyes.
The katydid bug hears through holes in its hind legs.
Bees have five eyes.
A snail can sleep for 3 years.
It is against the law to have a pet in Iceland.
A zebra is white with black stripes.
The waste produced by one chicken in its lifetime can supply enough electricity to run a 100-watt bulb for 5 hours.
Camel's milk does not curdle.
Scorpions can withstand 200 times more nuclear radiation than humans can.
The regular garden variety caterpillar has 248 muscles in its head.
It is possible to lead a cow upstairs, but not downstairs.
A kangaroo can't jump unless it's tail is touching the ground.
Kangaroos and emus cannot walk backwards, and are on the Australian coat of arms for that reason.
The Australian emu holds the land speed record for birds (31 mph).
A kangaroo can jump up to 3 meters high and leap up to 8 meters.
Dolphins don't automatically breath; they have to tell themselves to.
Dolphins sleep with one eye open.
No two lions have the same pattern of whiskers, like a fingerprint.
The male scorpion fly gets other males to bring him food by imitating a female fly.
The poison arrow frog has enough poison to kill about 2,200 people.
The Queen termite can live up to 50 years and have 30,000 children every day.
A cockroaches favorite food is the glue on the back of stamps.
A Cheetah at full speed takes strides of 8 meters.
Elephants can not jump.
An elephant can smell water 3 miles away.
A mole can dig a tunnel 300 feet long in just one night.
A large swarm of locusts can eat 80,000 tons of corn a day.
A male emperor moth can smell a female emperor moth up to 7 miles away.
A 6 pound sea-hare can lay 40,000- eggs in a single minute.
The weddell seal, can travel underwater for seven hours without surfacing.
A cow produces 200 times more gas a day than a person.
A snail can have about 25,000 teeth.
A woodchuck only breathes 10 times during hibernation.
The average flea can jump up to 350 times its own length. To match that a human would have to jump 1,000 feet.
Ants can live completely submerged underwater for up to 2 days.
The only food cockroaches won't eat are cucumbers.
The horned owl is the only animal stupid enough to attack a skunk.
A gold fish has the memory span of about 3 seconds.
A pound of grasshoppers is three times as nutritious as a pound of beef.
An animal epidemic is called an epizootic.
When possums are "playing possum" they're not playing - they are actually passed out from sheer terror.
A cheetah is the fastest animal, clocked in at: 70mph.
Cat gut, used in tennis rackets and strings for musical instruments does not come from cats, but from sheep.
A hinny is the offspring of a female donkey.
A foal is a baby horse.
At birth, bear cubs weigh between 1/2 - 1 pound.
Zebras are members of the Equus genus.
The biggest specie of apes are the gorillas.
A bat is the only mammal that flies.
The animal that tends to cling to rocks and boats are barnacles.
The smallest breed of dogs are the Chihuahuas.
The underside of a horses hoof is called a frog.
Animals that lay eggs don't have belly buttons.
Beavers can hold their breath for 45 minutes.
Female lions do 90% of the hunting.
90% of bird species are monogamous; only 3% of animals are.
Male horseflies can fly over 90mph.
Penguins feathers are covered in fat, which helps keep them warm.
Tigers have striped skin, not just striped fur.
A vulture will never attack a human or animal that is moving.
All porcupines can float in water.
The male gypsy moth can smell the virgin female up to 1.8 miles away.
Squirrels eat through 40,000 pine cones a year.
Bees visit over 2,000 flowers and fly over 55,000 miles to produce just 1 lb. of honey.
Hippopotamuses break wind through their mouths.
Hippopotamuses do 80% of their vocalizations underwater.
An elephant may consume 500 pounds of hay and 60 gallons of water in a single day.
Armadillos are the only animal besides humans that can get leprosy.
Armadillos can be house broken.
Armadillos can have up to four babies at a time and they are always all the same sex.
Goats' eyes have rectangular pupils.
Black lemurs are the only primates that can have blue eyes.
It takes seven years for a lobster to weigh one pound.
The difference between male and female blue crabs is the design located on their belly. The male blue crab has the Washington monument and the female blue crab's belly is shaped like the U.S. capitol.
Mice, whales, elephants, giraffes and man all have seven neck vertebra.
The poisonous copperhead smells like fresh cut cucumbers.
When angered, the ears of the tazmanian devil turn pinkish red.
An iguana can stay under water for 28 minutes.
Ferrets sleep around 20 hours a day.
Deer sleep only 5 minutes a day.
A female swine or sow will always have an even number of teats or nipples.
The Sumatran tiger has the most stripes of all the tiger subspecies, the Siberian tiger has the least.
Tigers' paw prints are called pug marks.
Kiwi birds are blind, they hunt only by smell.
All elephants walk on tip-toe because the back portion of their foot is made of no bone just fat.
The mola mola or ocean sunfish lays up to 5,000,000 eggs at one time.
Penguins can jump as high as 6 feet in the air.
Stag beetles have stronger mandibles than humans.
Rhinos are part of the same family as horses, and thought to have inspired the myth of the unicorn.
Dogs and humans are the only species that have prostates.
Hamsters love to eat crickets.
Butterflies taste with their feet.
Roosters can't crow if they can't fully extend their necks.
All snakes on the island of Tasmania are poisonous.
The fingerprints of koala bears are almost indistinguishable from those of humans, so much that they could be confused at a crime scene.
Emus have double plumed feathers and they lay emerald/forest green eggs.
Certain frogs can be frozen solid then thawed, and continue living.
It was discovered on a space mission that a frog can throw up. The frog throws up its stomach first, so that the stomach is dangling out of it's mouth. Then the frog uses its' forearms to dig out all of the stomach's contents and then swallows the stomach back down again.
Carnivorous animals will not eat another animal that has been hit by a lightning strike.
The smallest fish in the world is the Trimattum Nanus of the Chagos Archipelago. It is only 0.33" long.
Greyhounds have the best eyesight of any dog.
A pig is the only animal than can get sunburned.
The Garfish has green bones.
There are more than 2,000 muscles in a caterpillar.
Fish scales are an ingredient in lipstick.
Minnows have teeth in their throat.
When a giraffe is born, it has to fall around six feet to the ground.
An ostrich egg can make approx. eleven and a half omelets.
Ostriches stick their heads in the sand to look for water.
Ostriches swallow pebbles to aid in indigestion.
The giant squid has the largest eyes in the world.
A group of crows is called a murder.
Lake Nicaragua boasts the only fresh-water sharks in the entire world.
Swans are the only birds with a penis.
A whale's penis is called a dork.
Hippopotamus means river horse.
There are more chickens than people in the world.
Mosquitos usually don't fly in winds more than 10 mph.
It's more likely you would be attacked by a cow than a shark.
Alligators can live for more than 100 years.
Bulls don't really get angry when they see the color red, it's really movement that makes them charge.
Orca (killer) whales can grow to b 30ft long.
Many hamsters only blink one eye at a time.
Cows are usually found lying down before it starts to rain.
In North America, the breed of dog called the Doberman Pinscher is spelled with one "n". But in Europe where it originated, it's spelled with 2. The man who bred for the Doberman spelled his last name (Dobermann) with 2 'n's as well.
The Manta Ray is the largest of all fish.
The giant squid has the largest eyes in the world.
The reason most mosquito bites itch is because mosquitoes inject saliva into the persons skin before they suck your blood. They take it out once they are done, but if they are forced to fly away, they don't get a chance to draw the saliva out. And it is their saliva that causes the itch.
During the winter, squirrels make waterproof nests in hollow trees.
Cockroaches break wind every 15 minutes.
A donkey will sink in quicksand but a mule will not.
Giraffes and humans have the same amount of vertebrae in their necks.
Montana mountain goats will butt heads so hard their hooves fall off.
Mosquitoes have teeth.
An elephant's trunk contains more than 50,000 muscles.
Starfish have eight eyes, one at the end of each leg.
Antarctica is the only continent without any reptiles or snakes.
The katydid hears through holes in it's hind legs.
Baby robins eat 14 feet of earthworms per day.
An eagle can kill a young deer and fly away with it.
Bats always turn left when they exit a cave.
The only bird that can fly backwards is the hummingbird.
The penguin is the only bird that can swim but not fly.
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