1. A kiwi is technically a mammal.
   Mammals have warm blood.
2. Mammals only live in the Northern Hemisphere.
   Mammals lay eggs.

The general list of what constitutes a mammal is: having a covering of fur, skin or hair, being warm-blooded, giving birth to live young that consume milk, and having a spine.

1. big lizard
   ancient lizard
2. awful lizard
   terrible lizard

The word "dinosaur" literally translates as "terrible lizard." However, modern paleontologists have learned that many dinosaurs had feathers, making them more bird than lizard.

1. They have antennae.
   Their bodies consist of two parts.
2. They have eight appendages.
   They are carnivores.

Arachnids have a lot of things going for them, but antennae isn't one of them. Spiders and other arachnids do all have bodies divided into the cephalothorax and the abdomen, they all have eight appendages, and they are all meat-eaters.

1. They are invertebrates.
   Insects have eight legs.
2. Some of them have wings.
   Their bodies are in three separate parts.

Insects all have six legs (or three pairs) which are attached to the three sections of their bodies. Insects include flying bugs like bees and flies, and also flightless bugs like ants.

1. There are 500 species of monkey.
   Monkeys cannot use tools.
2. There are more than 260 species of monkey.
   Monkeys are all herbavores.

Monkeys are plentiful and varied, with more than 260 distinct species. However, this being the world, there are new species discovered and old ones going extinct every day, so that number will fluctuate.

1. Wedge shape
   Corkscrew shape
2. Dagger shape
   Fan shape

While great whites have wedge-shaped teeth, other sharks, like the lemon shark, have dagger-shaped teeth. Bottom-feeders, like the nurse shark, have blocky teeth that look fan-shaped from the side. No shark has yet developed a corkscrew-shaped tooth.

1. The main difference between bison and buffalo is that bison are better evolved for colder climates.
   Buffalo and bison are the same exact thing.
2. The main difference between bison and buffalo is that buffalo are more aggressive.
   Buffalo are wild bison

Buffalo and bison are not in fact the same creature. They are closely related, but buffalo tend to live in warmer climates, and it is believed that domesticated buffalo were the ancestors of modern cattle. Also, American bison have a very distinctive hump that buffalo don't have.

1. A die cast
   A milling machine
2. A chainsaw
   A hammer drill

Great white sharks dismember their prey by shaking their heads from side to side, allowing the natural shape of their teeth and the kinetic energy of the shaking to do the work of slicing through seals - much the same way a chainsaw cuts through a tree.

1. Dogs can't look up.
   Dogs always spin clockwise.
2. Dogs' mouths are dirtier than humans' mouths.
   If a dog's nose is cold and wet, the dog is healthy.

There are many myths about dogs, mostly borne out of our close relationship to them. For example, while canine distemper can dry out a dog's nose, there are plenty of other health problems that do not express themselves through the state of the dog's nose. Similarly, there is a myth that dogs' mouths are cleaner than humans, because dogs use their tongues to groom themselves. This is terrible logic, and not true. Dogs have as many bacteria in their mouths as we do, and depending on their attitudes towards picking up random stuff outside, even more.

1. All sharks are dangerous.
   Sharks live only in seawater.
2. Sharks have five rows of teeth, in case one breaks.
   Sharks did not exist in prehistory.

Sharks have five rows of teeth, which is convenient for when one of the front ones is lost. Not only do the teeth from the lower rows move up, but also the shark's body forms a fifth replacement tooth for the one used up. Handy.

1. Dogs cannot sea in color.
   Dogs sense of smell drives a lot of their behavior.
2. Dogs are pack animals.
   Dogs require discipline and structure to be happy.

Dogs are a little colorblind compared to humans, but not completely colorblind by any means. Dogs don't have the best eyesight generally - they rely on their other senses to fill in the blanks. On the other hand, they are pack animals who require a clear hierarchy to be happy, even if they aren't at the top of it.

1. Megalodon
   Bull Shark
2. Tiger Shark
   Sand Shark

Megalodon was a prehistoric shark that makes the great white look like a goldfish. Megalodon was sixty feet long, with a mouth big enough to drive a small car through. It is believed this creature preyed on the large creatures of the deep, such as whales, squid and large fish. For megalodon, a human would barely be a light snack.

1. Mustang
   American Half Horse
2. American Quarter Horse
   Miniature Horse

While miniature horses, mustangs and the American quarter horse are all real, the American half horse is made up. The American quarter horse is so named because it is very good at sprinting short distances, like a quarter mile. One can only assume the "half horse" would be some kind of centaur.

1. They are dead.
   They have colorful plumage.
2. They have four toes, two pointing forward, two pointing backward.
   They have excellent sense of smell.

Parrots two main defining characteristics are their curved beaks and their feet, which have four toes, two pointed forward and two backward. This is one of the reasons they can perch so well.

1. Beefalo
   Braunvieh
2. Abondance cattle
   Jersey

The beefalo is a hybrid mating of an American bison and domestic cattle, so technically not a kind of cattle.

1. The narwhal's horn is for fighting.
   The narwhal's tusk is solid.
2. The narwhal's tusk is a sensory organ.
   The narwhal's horn never grows longer than three feet.

Narwhals do not have horns at all! A narwhal's tusk is a canine tooth that grows outward their whole lives. It is primarily an organ used to sense things about the narwhal's environment, to communicate with other narwhals by rubbing, and to stun certain kinds of fish with a sharp impact.

1. They respond strongly to peer pressure.
   Rats are shy.
2. Rats can become depressed if they are alone for too long.
   Rats can fit their bodies through any opening wide enough to accommodate their tails.

Rats are fascinating creatures, and similar to humans in many ways, but they cannot fit their bodies through openings the width of of their tails. Norway rats, on the other hand, can fit their bodies through any opening large enough to accommodate their heads.

1. The are very social creatures.
   They are generally only aggressive when they feel their piglets are threatened.
2. The pig is one of the signs in the Chinese zodiac.
   The pig is one of the signs of the Western zodiac.

The pig plays an important role in nature and in agriculture. It also has important symbolism in the Chinese zodiac. It hasn't, however, made it into the Western zodiac, where the bull succeeded.

1. They sleep hanging from the ceilings of caves.
   They are born helpless and have to be raised initially in their parent's pouch.
2. They spend their whole lives in trees.
   They exist only in the Western Hemisphere.

Marsupials are peculiar creatures, having evolved a sort of pocket on their torsos in which they keep their young for a time, until they are old enough to survive on their own two or four feet.

1. They are closely related to rats.
   They were imported to populate Central Park.
2. They are native to New York City.
   They keep the vermin in check.

New Yorkers who enjoyed shooting managed to wipe out the native pigeons, so when the creators of Luxembourg Gardens drew up Central Park, bird fanciers insisted the city get its own authentically French pigeons with which they would populate the park.

1. Emu
   Snipe
2. Wild turkey
   Woodcock

Game birds are chosen because it's a challenge to hunt them. The emu is a massive flightless bird often raised as livestock, in captivity. Clearly not a game bird.

1. Rattlesnakes live in mostly arid climates.
   Some rattlesnakes hibernate in the winter.
2. Rattlesnakes always rattle before they attack.
   Rattlesnakes aren't colorful because they camouflage themselves.

Rattlesnakes don't need to rattle when they are threatened. They do so in order to avoid confrontation. If surprised, a rattlesnake can strike without making a sound.

1. Wolves prefer to live in urban areas.
   Wolves are the largest canids.
2. Wolves are lead by a queen.
   Wolves cannot be crossbred with dogs.

Wolves, dogs and foxes are all canids, and theoretically they can be crossbred. Dog/wolf hybrids are still closer to being wild animals than they are domestic pets, though, so be careful.

1. Camels can weigh up to 5,000 pounds.
   Camels' feet are evolved to walk on sand, spreading out so they don't sink into the sand.
2. Camels store water in their humps.
   Camel pregnancies last four months.

Camels' feet evolved, along with the rest of the camel, for desert travel. They carry fat reserves in their humps that they use for energy, and their feet spread out wide on the ground, decreasing the pounds per square inch of pressure their feet put on the ground, so they don't sink into the sand.

1. Koi don't do well when the temperature changes rapidly.
   Koi can live up to 50 years.
2. Koi are the same species as the common goldfish.
   Koi eat only plant matter.

Koi like the temperature to be between 15 to 25 degrees Celsius. They are domestic pets after all, not hardy wild animals. Koi can live a long time, though - 25 to 30 years!

1. Males will attack each other until one or both are seriously injured or dead.
   There is only one type of Betta splendens.
2. The color of Betta splendens has nothing to do with its health.
   Betta splendens is not another name for the Siamese fighting fish.

Betta splendens, or Siamese fighting fish, are a variety of fish from the Mekong. They come in several varieties, bred for their distinctive appearance. The males of this breed will fight each other to the death for territory, which they use to hunt insects and eat vegetation.

1. Cats like sweet tasting things.
   Cats only make about 20 distinct sounds.
2. The word "cat" comes from the Latin for a domestic cat, as opposed to the Latin for a wild cat.
   Only 350 Americans are bitten by cats per year.

Indeed, cattus, the Latin word for a domestic cat, is the root of our modern word, whereas feles is the Latin word for a wild cat. Cats bite approximately 40,000 Americans per annum, make 100 distinct sounds, and don't have a sweet tooth!

1. Baby llamas are called sires.
   Female llamas are called dams.
2. Llama wool is heavy, and does not protect well against the cold.
   Llamas are not intelligent animals.

Female llamas are dams, male llamas are sires, and baby llamas are cria. Llamas are very intelligent animals, with lightweight wool favored for its feel.

1. Bats live only a year or two.
   Bats are blind.
2. Bats are the only mammals capable of continuous flight.
   Bats are always carnivores.

Bats, which see in the ultraviolet spectrum, are the only mammals capable of continuous flight. They can live up to 20 years, and there are varieties of bats that eat insects, drink blood and eat fruit.

1. Nutria have webbed feet.
   Nutria have several rows of razor-sharp teeth, like sharks.
2. Nutria grow to the size of a Shetland pony.
   Nutria have thumbs and can use most basic tools.

Nutria are pretty horrifying, but not that horrifying. They are basically giant rats the size of beavers who possess huge incisors and live in swampy regions, like the deep South.

1. Coyotes are not preyed upon by wolves.
   The idea of coyotes walking on their toes is a myth.
2. Coyotes are not preyed upon by bears.
   Coyotes are monogamous.

Coyotes, which are monogamous, have a way of avoiding their natural predators, which includes wolves, bears, cougars, and humans. Coyotes can be extra stealthy by walking on their toes!

1. Falcons' flying range is usually about 10 miles.
   Some falcons can dive at speeds up to 500 mph.
2. Falcons rely on sound more than sight.
   Falcon wings taper to allow them to fly at high speeds

Falcons' wings are tapered, like those of an F-22 Raptor, which allows certain breeds to fly as fast as 200 mph. Falcons' range is about 30 miles, and they can spot prey about a mile away, just with their eyes.

1. Cockroaches can survive a long time without food.
   Cockroaches cannot be trained.
2. Cockroaches like confined spaces they can feel all around them.
   Cockroaches can live for weeks without their heads.

Scientists at Tohoku University found that cockroaches can be conditioned, just like dogs, and even made to salivate at a smell they have been conditioned to expect will precede food. Don't dwell on the cockroaches without heads.

1. Sparrows aren't well adapted to human-settled areas.
   Sparrows are carnivores.
2. Sparrows fly at about 13 mph.
   Sparrows eat mostly seeds and nuts.

Sparrows eat insects, making them carnivorous. They can fly up to 30 mph in an emergency, and are well designed to survive in a human environment, where our detritus provides them with plenty to eat.

1. Rattlesnake
   Seagull
2. Alligator
   Turtle

Squamata are scaled reptiles, the most recent iteration of the evolution of reptiles. They include many species, some more closely related than others. While birds are believed to be related to some squamata, they are in a different class, as they are no longer considered reptiles.