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100+ Animal Fun Facts and Trivia Questions
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A group of meerkats stands alert on a rock, looking in different directions with a blurred natural background.
Meerkats

100+ Animal Fun Facts and Trivia Questions

Written by
Amy Tikkanen
Amy Tikkanen is Managing Editor at Encyclopaedia Britannica.
Amy Tikkanen
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Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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History

The animal kingdom is full of remarkable creatures—and even more intriguing questions. Why are flamingos pink? Do sharks sleep? And what do ants eat? Keep reading to find the answers to these questions and many more.

Dogs

Two Akita dogs with thick fur, upright ears, and curled tails stand side by side outdoors on a path, surrounded by green foliage.
What Dog Is Closest in DNA to a Wolf?
Irish wolfhound
What Is the Tallest Dog Breed?
A white retriever-terrier mixed breed dog playfully crouches with its front legs lowered and tail raised on green grass outdoors.
Why Do Dogs Wag Their Tails?
Bronze statue of samurai Saigo Takamori standing with his dog on a stone pedestal in Ueno Park, Tokyo, with yellow autumn trees in the background.
Why Are Dogs So Loyal?
Mexican hairless dogs
What Is the Rarest Dog Breed?
West Highland white terrier
Why Do Dogs Like Bones?
Australian Cattle Dog
What Dog Breed Is Closest to the Dingo?
On the job
Why Are German Shepherds Police Dogs?
Canine variety
What Are Dog Years?
Smart and agile
What Is the Smartest Dog Breed?
A coyote sits on a snow-covered field with its head raised, howling. Leafless trees are visible in the blurred background.
Why Do Coyotes Scream?
Photograph of a Boxer dog
Why Are Boxer Dogs Called Boxers?
Cat vs. Dog
Are Dogs Smarter Than Cats?
Five retriever dog breeds sitting in a row outdoors, left to right: curly coated retriever, golden retriever, Labrador retriever, duck tolling retriever, and flat coated retriever.
Why Do Dogs Like to Play Catch?
Dog
Why Do Dogs Circle Before They Lay Down?
A Bernese mountain dog with a black, white, and brown coat lies on green grass with its tongue out, trees visible in the background.
Are Dogs Really Color Blind?
Dalmatian dog lying on grass, dressed in a fire department mascot costume with a yellow and gray jacket and a black firefighter helmet labeled Dottie.
Why Are Dalmatians Firefighter Dogs?
Golden Retriever
Why Do Dogs Have Wet Noses?
French Bulldogs
What’s the Most Popular Dog Breed in the U.S.?
Wet dog
Why Do Wet Dogs Have a Wet Dog Smell?
A small black and tan Chihuahua dog with upright ears stands on green grass, looking alertly to the side.
Why Do Small Dogs Live Longer?
Dog
Why Do Dogs Eat Poop?
The nose knows
Why Are Bloodhounds Used as Police Dogs?
Bully boy
What Dogs Make An American Bully?

Cats

Happy cat
Why Do Cats Purr?
Close-up side portrait of a long-haired cat with green eyes, looking upward, showing prominent white whiskers against a dark background.
Why Do Cats Have Whiskers?
A demon?
Why Are Black Cats Unlucky?
Egyptian statue of the goddess Bastet
Why Do They Say That Cats Have Nine Lives?
A fluffy ginger cat with white markings comfortably lies curled up inside a cardboard box on a bed.
Why Do Cats like Boxes?
domestic cats
Do Cats Cause Schizophrenia?
Catnip
Why Do Cats Like Catnip?
A red Maine Coon cat with long fur licking its front paw while grooming itself, eyes closed in a relaxed expression.
Why Do Cats Clean Themselves So Much?
A striped gray cat rubs its head affectionately against the legs and shoes of a man wearing blue jeans and navy sneakers.
Why Do Cats Rub Against Your Legs?
A mother cat gently licks her small kitten, cleaning its head while cradling it with her front legs.
Why Do Cats Blink Slowly?
A red Maine Coon cat with long fur licking its front paw while grooming itself, eyes closed in a relaxed expression.
Why Are Maine Coon Cats So Big?
Domestic tabby cat
Why Do Cats Hate Water?
Persian cat
Why Do Cats Sleep So Much?
Calico house cat with black, orange, and white fur sleeping curled up in a patch of sunlight.
Why Are Most Calico Cats Female?
A young orange tabby cat reaches out a paw to touch a dandelion puff, scattering seeds on a sunlit green meadow with yellow flowers.
Why Are Orange Cats More Likely to Be Male?
Young grey Korat cat biting a wooden stick and raising a paw to show its claws while playing.
Why Do Cats Like Scratching Posts?
Long-haired house cat with a mix of cream, brown, and white fur stands alert on a fence, surrounded by green foliage.
Why Do Cats Have Split Pupils?
Amur tiger (Panthera tigris altaica) running through deep snow, kicking up powder in a snowy winter landscape in the Russian taiga.
Are Tigers Bigger Than Lions?
A male lion
Why Do Lions Roar?
A leopard, Panthera pardus, walks along the ground near water in South Africa, its body covered in distinctive dark spots and rosettes.
What’s the Difference Between a Cheetah and a Leopard?

Marine animals

A humpback whale (Megaptera novaeangliae) with its mouth open strains krill through its baleen at the ocean surface off the coast of Alaska, with forested hills in the background.
What Do Whales Eat?
A pod of orcas, or killer whales, swims at the surface of calm blue water in Frederick Sound, with distant mountains visible in the background.
Why Are Orcas Called Killer Whales?
Photograph of a humpback whale under the ocean surface
How Long Can Whales Hold Their Breath?
Sand tiger shark (Carcharias taurus)
Why Do Sharks Attack?
shark fins
Do Sharks Sleep?
Garden snail with a glossy, spiral-patterned brown shell crawling on a bright green leaf.
How Fast Are Snails?
Giant Pacific octopus, Enteroctopus dofleini, with reddish textured body and extended arm showing white suction cups, rests on aquarium floor in Vladivostok, Russia.
How Many Hearts Does an Octopus Have?
A translucent jellyfish in the medusa stage glows with blue bioluminescence against a dark background, its bell and trailing tentacles clearly visible.
How Many Tentacles Does a Jelly Fish Have?
A variety of brightly colored tropical fish swim among coral formations in the clear water of a Belizean Caribbean reef.
How Do Fish Sleep?
Humpback whale (Megaptera novaeangliae)
Why Do Whales Sing?
Respiratory system of a fish
How Do Fish Breath?
Image of tropical fish in a coral reef.
How Do Fish Reproduce?
A humpback whale (Megaptera novaeangliae) with its mouth open strains krill through its baleen at the ocean surface off the coast of Alaska, with forested hills in the background.
What Do Whales Eat?
Orange-and-white clownfish swimming among the tentacles of a sea anemone in the Great Barrier Reef, off the northeastern coast of Australia.
Do Fish Drink Water?
Two fishermen in orange overalls work on a fishing boat, hauling gear from the water in the Atlantic Ocean off the coast of Virginia, with shoreline visible in the background.
Why Are Fish High in Mercury?
Dozens of bright red sockeye salmon with green heads swim upstream in clear, shallow water during the annual spawning run in the Russian River, Kenai Peninsula, Alaska.
Why Do Salmon Die After Spawning?
Fur seal in Namibia
What’s the Difference Between Seals and Sea Lions?
Illustration of an oarfish (Regalecus glesne) with a long, ribbon-like blue body, red dorsal fin, and trailing fin rays, shown with scale bars for 1 meter and 3 feet to indicate its large size.
Why Do Oarfish Swim Vertically?
Florida manatee
Why Is It Illegal to Touch a Manatee?
Big-belly seahorse, Hippocampus abdominalis, with a rounded belly and pale body, swims upright against a dark blue underwater background.
Why Do So Few Seahorses Survive?

Birds

A turkey vulture (Cathartes aura) soars with wings spread wide against a blue sky, showing its dark body and red head.
How High Do Birds Fly?
Black-headed gulls
Do Birds Pee?
Red-breasted nuthatch (Sitta canadensis)
How Do Birds Hear?
A small brown bird with a long beak sitting on a tree branch.
How Fast Do Hummingbirds Fly?
A photo of a great horned owl perched on a tree stump, displaying mottled brown and gray plumage with prominent ear tufts and striking yellow eyes.
Why Do Birds Chirp at Night?
Five Canada Geese flying in a V formation against a blue sky with scattered clouds during migration.
How Do Birds Know When to Fly South?
Australian pelicans (Pelecanus conspicillatus)
Why Don’t Birds Have Teeth?
Ostriches (Struthio camelus).
What Are the Most Dangerous Birds?
Golden eagle with wings spread wide, talons extended, preparing to land on a snow-dusted rock.
How Fast Can Eagles Fly?
Close-up of a bald eagle showing its white head, yellow hooked beak, and sharp eye, with brown feathers visible at the neck.
Why Are Bald Eagles Called Bald?
Three bright blue robin's eggs rest in a woven nest surrounded by green leaves and twigs.
Why Are Robin Eggs Blue?
A yellow chick standing on one leg with its other foot resting on a brown egg, set against a white background.
How Long Do Chicken Eggs Take to Hatch?
A Cape parrot (Poicephalus robustus) with green and brown plumage perches on a leafy tree branch, feeding, against a clear blue sky in South Africa.
Why Do Parrots Talk?
Eastern screech owl (Megascops asio) with gray morph plumage perched on a spruce tree branch, facing forward with wide yellow eyes.
Why Do Owls Hoot?
flamingo
Why Are Flamingos Pink?
Bird droppings
Why Is Bird Poop White?
flamingo
Why Do Flamingos Stand on One Leg?
A male mandarin duck, Aix galericulata, flaps its wings while standing in the water, displaying its colorful plumage with orange, blue, and white markings.
Why Is Bread Bad for Ducks?
A baby emperor penguin stands on snow between two adult emperor penguins, all facing forward, with more penguins blurred in the background.
Why Are There No Penguins at the North Pole?
Turkey vulture with outstretched wings gliding against a clear blue sky in Patagonia, Argentina.
Why Do Vultures Circle?

Spiders and insects

Extreme close-up of the large, glossy eyes and hairy face of a female zebra jumping spider, Salticus scenicus, showing fine detail of the eyes and surrounding hairs.
How Many Eyes Does a Spider Have?
A group of reddish ants surrounds and works together to carry a dead insect across the forest floor.
What Do Ants Eat?
Close-up of two 17-year cicadas with black bodies and orange eyes, perched on a branch, with a blurred green and brown background.
Why Are Cicadas So Noisy?
Periodical cicada (genus Magicicada)
Why Do Some Cicadas Appear Only Every 17 Years?
honeybee
Why Do Bees Buzz?
A honeybee collects nectar from a bright yellow cucumber flower, surrounded by green leaves and stems.
Do Bees Die After Stinging?
Queen bee
How Long Do Queen Bees Live?
Six legs plus some
How Many Legs Does a Caterpillar Have?
Hundreds of Monarch butterflies (Danaus plexippus) cluster densely on the branches of an Oyamel fir tree (Abies religiosa).
How Do Butterflies Migrate?
Buckeye butterfly
What’s the Difference Between Moths and Butterflies?
Crickets
Why Do Crickets Chirp at Night?
Close-up of an ensign wasp (Evania appendigaster) with black body, long legs, and antennae standing on a bright green leaf.
What’s the Difference Between Hornets and Wasps?
Close-up of a mosquito with long legs and wings, feeding on human skin.
Why Are Mosquitoes Attracted to Certain People?
A Culex pipiens mosquito feeds on human skin, its proboscis inserted as it draws blood.
Why Do Mosquitoes Drink Blood?

Reptiles and amphibians

Chomp chomp
What Eats Snakes?
A common garter snake (Thamnophis sirtalis) with yellow stripes and red spots along its dark body rests on rocky ground.
Do Snakes Sleep?
A ball python (Python regius) coiled tightly around and swallowing a white mouse, with the rodent's head partially inside the snake's mouth.
How Do Snakes Swallow Large Prey?
A common garter snake, Thamnophis sirtalis, is seen in green grass with old skin peeling from its head as it sheds.
Why Do Snakes Shed Their Skin?
Mozambique spitting cobra
What Are the Deadliest Snakes?
American alligator (Alligator mississippiensis)
How Fast Are Alligators?
Tree frog
What’s the Difference Between a Frog and a Toad?
Chinese alligator (Alligator sinensis)
How Long Can Alligators Live?
Closeup of a Black Caiman (Melanosuchus niger) facing the camera as it enters the water from a muddy riverbank in Pampas del Yacuma, Bolivia.
Are Black Caimans Larger Than Alligators?
Crocodile
What’s the Difference Between Crocodiles and Alligators?
Painted turtle (Chrysemys picta) basking on a log beside a pond, with green vegetation and water in the background.
Why Are Turtles So Slow?
A green sea turtle swims above a sandy, grassy seabed in clear blue water near Puerto Rico.
Why Do Turtles Live So Long?
What's the Difference Between Turtles and Tortoises?
What’s the Difference Between a Turtle and a Tortoise?
A common chuckwalla lizard (Sauromalus ater) rests on a large rock in a dry, open desert landscape with mountains in the background.
Why Are Reptiles Cold Blooded?

Other mammals

Cows
Are Cows Really Unable to Walk Down Stairs?
A family of polar bears
Why Are Polar Bears White?
A grizzly bear (Ursus arctos horribilis) running through shallow water with a salmon in its mouth at Katmai National Park, USA.
How Fast Can Bears Run?
White horse galloping across a grassy field with its mane and tail flowing, set against a dark, cloudy sky.
How Fast Can Horses Run?
A dun-colored horse with a dark mane and tail lies curled on the ground, resting with its head down and eyes closed.
How Do Horses Sleep?
A horse resting in a grassy field
Why Do Horses Roll?
Two light brown carriage horses wearing bridles with black blinders stand side by side on a street in Berlin, with autumn trees in the background.
Why Do Horses Wear Blinders?
Illustration of a horseshoe and horse's hoof
Why Do Horses Need Horseshoes?
Within spitting distance
Why Do Llamas Spit?
An American beaver sits atop a mound of sticks and mud, its dam or shelter, surrounded by water in Moran, Wyoming.
Why Do Beavers Build Dams?
A hippopotamus stands at the edge of a watering hole, with several other hippos partially submerged in the water, surrounded by green vegetation in Botswana, Africa.
Why Are Hippos Dangerous?
Are bats just rats with wings?
Are Bats Rodents?
A small brown animal with a flat tail and snout and webbed feet floats on the surface of water.
Why Is the Platypus a Mammal?
Three zebras with black and white stripes stand close together, touching noses, in Masai Mara National Park, Kenya.
Why Do Zebras Have Stripes?
Sloth
Why Are Sloths So Slow?
African elephant
Why Are Elephants’ Ears So Big?
A group of mountain gorillas sits close together on green vegetation in a dense jungle in Rwanda, Africa.
Why Do Apes Live in Groups?
Red kangaroos on the move
Why Are Kangaroos Only Found in Australia?
Fighting kangaroos
Why Do Kangaroos Hug?
A raccoon standing in water surrounded by snow.
Do Raccoons Wash Their Food?
Kangaroo mother and joey
What Do Kangaroos Eat?
Hare or rabbit?
What’s the Difference Between Rabbits and Hares?
Two kangaroos standing upright in tall grass, facing each other and boxing with their forearms and kicking with their legs.
Do Kangaroos Really Box?
Male Sika deer, Cervus nippon, with large branching antlers, standing outdoors with a blurred forest background.
Why Do Deer Shed Their Antlers?
A striped skunk (Mephitis mephitis)
Why Do Skunks Spray?
Photograph of a giant panda eating bamboo leaves.
Are Pandas Endangered?
A deer stands motionless on a dark road at night, illuminated by the bright headlights of an approaching car.
Why Do Deer Freeze in Headlights?
A giraffe stands among trees and tall grass in the bushveld of Kruger National Park, South Africa, with distant hills visible in the background.
Why Do Giraffes Have Long Necks?
Bats roosting upside down
Why Do Bats Sleep Upside Down?
Arabian camel, or dromedary
Do Camels Store Water in Their Humps?

Dreams, tails, and more

Are you dreaming, Whiskers?
Do Animals Dream?
Punxsutawney Phil and the Folklore of Animal Weather Prediction
Can Animals Predict the Weather?
cheetah
What Is the Fastest Animal on Earth?
Mallard (Anas platyrhynchos)
Why Are Male Animals More Colorful?
mantid
Why Do Some Animals Eat Their Mates After Sex?
spider monkey
Why Do Animals Have Tails?
bear
Why Do Some Animals Hibernate?
fierce snake
How Deadly Are Australia’s Animals?
Amy Tikkanen