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Largest, Smallest,

Fastest, Slowest

The book of extreme animals

Milena Chan

To: Mrs. Jones, Mrs. Mancuso, and all my family and friends


             Have you ever wondered what the largest or smallest animal on earth is? What about the fastest or slowest animal? Some animals are as heavy as airplanes and some are as tiny as your fingernail! These animals come from all over the world.  Here you’ll find some pretty extreme animals that you’ve never heard of before.








 24 feet






12 feet   





 9.7 feet


          The African Bush Elephant, which lives in Central Africa, is the LARGEST land creature.  At birth, a baby elephant will weigh between 175 to 225 pounds.  Fully grown elephants can weigh up to 11 tons and measure up to 24 feet long.  The African Bush Elephant can live for 60-70 years.


          The African Bush Elephant is an herbivore.  They eat leaves, grass, and fruit.  In 1990, a law was passed that made elephants illegal to hunt. People would kill them for their ivory tusks to make buttons, combs, piano keys, and other decorative objects.  Along with their trunks are also very important.  Elephants can use their trunks as a nose, and and arm.




         The blue whale weighs an incredible 200 tons.  One ton is 2,000 pounds. If you do the math, that’s 400,000 pounds!  Just the tongue of a blue whale equals the weight of one elephant! They are about the length of 2 basketball courts put together or around 100 feet long!   Each day, the blue whale eats about 40 million shrimp-like creatures called krill to function.  

        The Blue Whale, which is the largest ocean animal, is an endangered species too.  They have been killed for their oils.   It can travel and live in many oceans around the world. Every 1-2 years they have their babies in the tropical oceans during the summer.


21 tons

4 tons

200 tons

Common Buzzard

2.5 feet

      Andean Condor        

 10 feet

 Bald Eagle

7.5 feet

           The Andean Condor is the largest bird in the world. They live on the western border of South America. An adult Andean Condor weighs 20-26 pounds and has a wingspan of 10 feet long. They are able to live for 50 years eating carrion or dead rotting animal flesh. When they fly up above they can easily spot their food with their eagle-eyes.

           Did you know that they’re the national bird of Colombia, Chile, Bolivia and Ecuador?  They were also put on the Endangered species list in 1973.  Farmers killed them because they believed that these birds were responsible for hurting the cattle.   It’s hard for this  species to repopulate because they only lay 1 egg every 2 years.  







            The Bumblebee Bat is one of the smallest flying land animal.  They eat small insects and spiders.  It weighs the same as 2 paper clips or 2 grams!  They are a little more than 1 inch long and their wingspan is 7 inches long.  They small bat can even fit in your hand!


            They live in western Thailand.  People also call them the  Kitti’s hog-nosed bat because a biologist named Kitti Thonglongya discovered the species in the early 1970’s.  In 2006 they became endangered because of the damage of their homes and pollution. Now, there are only 2,000 of them left in the world.


7 inches

            The Octopus wolfi is the smallest ocean animal in the world.  It is only one centimeter in length! When they are fully grown, they weigh less than a dime!   

In 1913, they were discovered and classified as the Octopus wolfi.

           They live in the Indo-pacific ocean located near Japan, the Phillipines and Australia.  Did you know that there are over 100 species of Octopus?  All octopus have three hearts and blue blood!  Their blood contains a protein called hemocyanin which turns it blue.   






White-tailed Deer




27 mph

47 mph


70 mph

       Cheetahs are the fastest animals on Earth.  They are able to run at 40 mph, or the speed of a car and then up to 70 mph!  As an adult, they weigh 140 pounds! They measure from 2-3 feet long.   They normally have a lifespan of 10 years.


        The Cheetah’s home is in Africa around deserts.   Many cubs are eaten by eagles, hyenas, and lions, which causes the cheetah population to decrease.  Cheetahs eat small animals like rabbits.  



75-99 mph

200 mph



120 mph

            The Peregrine Falcon is the fastest flying bird with a speed of 200 mph.  They mostly eat other birds. The female weighs 1-3 pounds and the male weighs 1-2 pounds.  The Peregrine falcon’s wingspan is 2.5 to 4 feet wide.  


            They live on every continent except for Antarctica. Did you know that both the female and male can incubate the eggs?   The female lays 2-5 eggs at one time.  The female Peregrine Falcon is larger than the male by weight and slightly by size.


Slowest Animals

3-4 mph

0.15 mph


            Sloths are the slowest animals in the world.  They are super lazy and sleep 15-20 hours in one day!   They mate and give birth in the trees that they hang from.  They weigh 17-19 pounds and eating only leaves causes their low-energy activity.   


            They are found hanging in the trees of South and Central America.  The algae that grows on them helps them camouflage with the trees. Their stomach actually has 4 different parts.   When a sloth dies they can still stay on the branch.  


0.2 mph


0.01 mph


            The seahorse is the slowest ocean animal.  They swim at 0.01 mph.  Weighing about 1 pound or less and they can be 1-14 inches long.  They like to eat small fish, plankton and shrimp.  


            Seahorses live in the Pacific Ocean. Their predators are crabs near shallow water.  There are about 40 species of seahorse. When seahorses swim they link their tails with each other to stay together.  



30 mph



  16 mph

            The American Woodcock is the slowest flying animal in the world.  They fly at 16-18 miles per hour. The female’s bill is 2.75 inches long and the male’s is 2.5 inches long.  They eat earthworms like a lot of birds do and they weigh 5-8 ounces.  


            They live in fields and forests and is also known as the “Timberdoodle” and the “Woodcock”. They are called the “woodcock” because they live in wooded areas.  They also live in The Eastern U.S. and Canada.  

Sultan Kösen

Tallest Man

8 ft 3 in


Blue Whale

100 feet

Comparing Extreme 

Chandra Bahadur Dangi

Shortest Man


1 ft 9.5 in



Bumblebee Bat

1 in




70 mph

Usain Bolt

Fastest Man

27.7 mph

Although Sogelau Tuvalu is not the slowest runner in the world, he is the slowest Olympic runner for the 100 meter dash.  He ran at 15.66 seconds per 100 meters.  


0.01 mph


The Pacific Ocean

The blue whale, the Octopus Wolfi and species of seahorse live in the Pacific Ocean.  Blue whales can swim from 330 to 1640 feet deep, while seahorses live near shallow waters from 300 feet or above in coral reefs. Some seahorses live in unexplored deeper waters.    


The African Bush Elephant and the Cheetah live in regions of Africa.  Cheetahs live in wide-range deserts with lots if sand, but elephants live in deserts with grass.  

      The Amercian Woodcock, The Bumblebee Bat and the Peregrine falcon live in other parts of the world.  The Peregrine Falcon ca live in many parts of the world, but the bumblebee Bat lives more around Asia.  The American Woodcock lives in North America in more wooded and forest regions like Canada.  

South and Central America

      The Andean Condor and the three-toed sloth live in South and Central America.  Sloths live in rainforest areas like the Amazon, while Andean Condors fly high above circling the skies.