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Grade Level Estimation: 1st
Grade level may vary depending on location and school curriculum. The above estimate is for schools in the USA. [x] close
Common core standards listing. [x] close
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Kids will love learning about their favorite animal species by reading these interesting articles. We have scores of articles covering all types of animals, from aardvarks to zebras.
Most of the worksheets on this page align with the Common Core Standards. To see CCSS connections, simply click the apple core icon ().
Even though it is sometimes called earth pigs, aardvarks aren't really related to pigs at all.Armadillos Member
Learn about the armored mammals called armadillos, which can be found in various areas throughout North and South America.Bats Member
There are nearly a thousand different species of bat in the world today. Most eat insects or fruit, but there is one type- the vampire bat- that drinks blood.
(Approx. Grade Levels: 3-5)
This article contains a list of common beaver questions, such as "What's the difference between a beaver lodge and a beaver dam?" Read to find out how much beavers weigh, what they eat, where they live, and more.Bighorn Sheep Member
Bighorn Sheep have horns that weigh up to 30 pounds. Males will battle by ramming each other in the head.Camels Member
Learn why camels have humps, how their coat helps them to survive, and other interesting camel facts.Capybara Member
Learn about our planet's largest species of rodent, the capybara.Cheetahs Member
Cheetahs are the fastest land animals in the world, but even cheetahs have to be on the lookout for other predators.Chipmunks Member
Discover what's unusual about a chipmunk's cheeks, along with other interesting chipmunk facts.Dolphins and Porpoises Member
Learn how dolphins and porpoises are alike, and how they're different. This article includes a question page, a Venn diagram, and a vocabulary activity.Elephant Seals Member
Find out why these strange animals are called elephant seals and learn about their unusual hunting habits.Fennec Fox Free
The bushy-tailed, big-eared fennec fox in an amazing species that is adapted to live in desert climates.Flying Squirrel Member
Did you know that flying squirrels can't actually fly? They glide from tree to tree, using a furry membrane like a parachute.Groundhog or Woodchuck? Member
Did you know groundhogs are great swimmers? And they can climb trees too! They can also bark and whistle. Learn these and many more interesting facts about groundhogs in this article.Hedgehogs Member
Discover everything you wanted to know about spiny hedgehogs.Honey Badgers Member
The honey badger is arguably the most fearless animal on Earth. It eats porcupines and venomous snakes, raids beehives for honey, kidnaps baby cheetahs, and steals food from hungry lions.Hyenas Member
Hyenas are neither cats nor dogs, but in a family all their own. These fierce scavengers gobble up leftovers left by other animals.Jaguars Member
Discover how jaguars live and hunt, and learn why these beautiful animals are endangered.Koalas Member
The cutest mammals in Australia actually have very sharp claws and they spend more time asleep than they do awake.Llamas Member
Llamas are are very helpful to man. They work as pack animals that carry heavy goods. They also provide wool for clothing. Some even help ranchers protect their sheep from coyotes.Mandrills Member
Mandrills, with their bright blue and red noses, are perhaps the most colorful mammals in the world.Muntjac (Barking Deer) Member
Have you ever heard of a barking deer? If you visit South America you may see muntjacs - small deer that like dogs.Narwhals Member
Narwhals are sometimes called "Unicorns of the Sea," but do you know why? It's because they have a nine-foot tusk that looks like a unicorn's horn.Orcas (Killer Whales) Member
Orcas, or killer whales, are known as wolves of the sea because of their hunting practices.Ostriches Member
Did you know that an ostrich's eyes weigh weigh twice as much as its brain? Learn interesting facts about ostriches in this nonfiction article. This reading comprehension worksheet is designed for fourth grade level readers and includes reading comprehension questions, vocabulary exercises, and a writing prompt. Learn about the big and exciting ostrich!Platypus Member
Learn about the unusual life of world's strangest-looking mammal.Polar Bears Member
Discover how polar bears have adapted to live in the Arctic.Polecats Member
Learn about the weasel-like animal known as the polecat.Porcupines Free
It rattles like a rattlesnake and it it gives off a fowl odor like a skunk. What is it? A porcupine!World's Largest Marsupial Member
This article will teach students about the red kangaroo. Measuring 6 feet tall and weighing 200 pounds, it is the world's largest marsupial.Skunk Alert Member
Learn many fascinating facts about skunks! Did you know that skunks are actually very shy? Discover this and much more!Skunks Member
Learn dozens of fascinating facts about stinky, smelly skunks.Sloths Member
Read about the slow-moving sloth from Central and South America.Spectacled Bear Member
Bears don't wear glasses, but the spectacled bear from South America has circular markings that make it look like it's got spectacles.Spiny Anteaters (Echidnas) Member
Echidnas are one of only two mammals they lay eggs. Females also have a pouch to carry their babies, just like kangaroos.Tamanduas Member
This strange looking animal has four legs, a long snout, large ears,and lurks in the forests of Central and South America.Visayan Warty Pigs Member
The Visayan warty pig is wild pig that is native to the Visayan Islands of the Philippines. It is one of the world's most endangered animals.Wolverines Member
The wolverine is a solitary, but fierce, hunter who lives in snowy, northern climates across the world.Zebras Member
How to zebras protect themselves from predators? They run, kick, and bite. They even sleep standing up so they're ready to run at any sign of danger.
ReptilesAlligators and Crocodiles Member
Learn how alligators and crocodiles are different and how they're similar.Boas and Pythons Member
Learn the similarities and differences between boas and pythons with this compare/contrast article.Chameleons Member
Chameleons can change color, rotate their eyes, and have toes that are specially adapted for climbing.Cobras Member
Did you know that a king cobra can inject enough venom to kill an elephant? Learn this, and many more fun facts about cobras.Desert Tortoise Member
The desert tortoise lives in the Mojave and Sonara Deserts of the southwestern USA. They get most of their water from food and can live over 50 years.Gila Monster Member
Lurking in the deserts of the Southwestern United States is a colorful monster with a forked tongue, big head, and powerful claws.Green Anaconda Member
The green anaconda is the largest snake in the world! It lives in South American swamps, weighs 500 pounds and eats pigs, deer, and even jaguars!Horned Lizards Member
Learn tons of fascinating facts about iguanas in this article.Iguanas Member
Learn tons of fascinating facts about iguanas in this article.Rattlesnakes Member
Rattlesnakes are efficient predators, but they can also be prey to larger, desert-dwelling animals. They use their rattle to warn predators of their venom.Sea Turtles Member
Did you know that sea turtles have been around since the time of the dinosaurs? Learn all about the fascinating world of sea turtles. Discover the names of the seven sea turtle species, learn about the obstacles baby sea turtles face when they hatch, and find out the dangers sea turtles face today.Tamanduas Member
A tamandua is an unusual-looking animal with four legs, a long snout, big ears, and a flexible tail.Tuatara Member
The tuatara is a rare reptile found only in New Zealand. While it looks like a lizard, it's really more closely related to a snake.Komodo Dragons Member
Are dragons real? You bet they are. Indonesians know all about the fierce lizard known as the Komodo dragon.
BirdsBee Hummingbird Free
The world's smallest bird - the bee hummingbird - can hover in place, fly upside down, and even fly backwards.Eagle Member
The American bald eagle has such good eyesight, it can spot a fish from a mile away! It is also a national symbol of the United States.Flamingo Member
The flamingo is one of the most recognized birds in the world because of it's unusual body shape and hot-pink feathers.Flightless Birds Member
Learn about several birds that run and walk and swim instead of fly.Kiwi Birds Member
The kiwi is an unusual bird with a long beak, no tail, and long legs. There are five species of kiwis and none of them can fly.Owls Member
Owls have special adaptations that allow them to fly without making a sound, and hunt during the dark nighttime hours.Peacocks (Peafowl) Member
Did you know that all peacocks are male? Female peacocks are called peahens. In this article students will learn many fascinating facts about peafowl.Penguins Free
Learn about two different penguin species - the Emperor penguin and the Galapagos penguin. One of them lives in frigid Antarctica. The other lives on the tropical Equator.Secretary Bird Member
The secretary bird is a large, terrestrial raptor from Africa. It eats mice, hares, mongooses, lizards, and even snakes.Toucans Member
A toucan's colorful bill is certainly beautiful, but did you know that it also helps the toucan in many ways?Wild Turkeys Member
What's the difference between a tom, a gobbler, a hen, and a pult? Find out in this article about wild turkeys.
FishFlying Fish Member
It's not a bird, nor a plane. It's a flying fish! Learn all about these strange animals.Great White Sharks Member
Look out! The world's second largest, and most ferocious shark may be swimming in an ocean near you.Hammerhead Sharks Member
The hammerhead shark is one of the fiercest and most dangerous animals in the sea. It uses electroreceptors in its unusual-shaped head to find prey.Seahorses Member
Your students will learn lots of interesting and unusual facts about seahorses when they read this article.Sharks Member
This article has information about sharks and describes why they are endangered.
AmphibiansFrogs and Toads Member
Discover the similarities and differences between frogs and toads.Amphibians and Reptiles Member
Can your students tell a reptile from an amphibian? This compare and contrast article will help students learn the differences between these two vertebrate groups.
Insects, Spiders, and BugsGrasshoppers Member
Are grasshoppers a farmer's friend or foe? Actually, both. Find out how grasshoppers can help and harm humans.Leaf Cutter Ants Member
Learn all about leaf cutter ants, and their highly developed insect society.Ladybugs Member
Learn how ladybugs got their name, and why some farmers love them.Mealworms Member
Find out how to build a mealworm habitat and raise your own darkling beetles.Monarch Butterfly Member
Find out how monarch butterflies protect themselves and learn about their transformation from caterpillar to butterfly.Moths and Butterflies Member
Learn the similarities and differences between butterflies and moths.Pill Bugs Member
Learn all about roly-poly pill bugs, which curl up in a ball to protect themselves.Pseudoscorpions Member
Pseudoscorpions are tiny, harmless scorpion-like creatures that can sometimes be found in bathrooms. Read about these interesting arachnids and answer the questions. (non-fiction)Rhinoceros Beetle Member
Do you know what the strongest animal on Earth is? A bear? An elephant? Actually it's the rhinoceros beetle! This large insect can lift 850 times its own weight!Tarantulas Member
Tarantulas are different from other spiders because they don't spin webs to trap food and they live in underground burrows.Spiders, Beetles, and Centipedes Member
Find out about three different subgroups of arthropods- insects, arachnids, and myriapods.Stink Bugs Member
Discover the stink bug - an animal that uses a noxious odor to scare enemies away.
Other AnimalsEarthworms Member
Earthworms have no eyes, no nose, no ears, no bones, no arms, and no legs. They do, however, have very complex bodies.Octopus Free
I bet you didn't know that an octopus can vanish in a cloud of smoke. It's just one of the unique ways an octopus can defend itself.Peter Pan Jellyfish Member
A fascinating article about a special type of jellyfish that can revert back to infancy and begin its life all over again.
Animal TopicsCamouflage Member
Many animals use camouflage to hide from predators and to avoid being seem while hunting.Hibernation (Non-Fiction) Member
Hibernation is when animals slow down for the winter and fall into a sleep-like state. Learn about animal hibernation with this interesting article.Migration Member
Find out why animals migrate from one place to another.Nocturnal Animals Member
This passage is about animals who are adapted to sleep during the day and become active during the nighttime hours.Carnivores, Herbivores, and Omnivores Member
Compare and contrast three types of animals - herbivore, carnivore, and omnivore.
See also:Third Grade Reading Comprehension
Third grade stories, articles, passages and poemsFourth Grade Reading Comprehension Worksheets
Fourth grade reading stories, articles, and poemsFifth Grade Reading Comprehension Worksheets
Fifth grade reading stories, articles, and poemsScience: Animal Worksheets
Animal (vertebrate) classification worksheets