Ranking Animal IQs: Which Animals Would Ace an IQ Test (and Which Would Flunk)?

“Average animal IQ” may sound like a made-up concept, but people love to ask the question: Which animals are the smartest? We can’t resist comparing our own smarts to the rest of the animal kingdom.

While no crow or dolphin is sitting for a standardized test, scientists have spent decades studying animal cognition, uncovering everything from octopuses solving puzzles to elephants grieving their dead. The findings suggest intelligence is not a straight ladder with humans on top—it’s a spectrum of abilities shaped by survival needs, environments, and social complexity.

And yet, in everyday life, we already compare animals and intelligence all the time. We call someone “sly as a fox” or “wise as an owl.” We joke about “birdbrains” or having a “goldfish memory.” In a way, we’ve been giving animals “IQ scores” in our imagination for centuries—just not with numbers attached.

So, if we can’t give animals a real IQ score, can we imagine what it would look like if we did? That’s the game we’re playing here.

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How We Built Our “Average Animal IQ” Scale

Scientists don’t assign IQ numbers to animals, but they do measure animal intelligence in very specific ways. Instead of asking a dolphin to solve equations or giving an owl a vocabulary test, researchers look at behaviors that reveal how animals think:

• Problem-solving: Can an animal invent solutions—like chimps using sticks to fish out termites?
• Memory: Can it recall dozens of food caches, as crows and squirrels do, or remember migration routes across oceans?
• Social learning: Does it copy or teach behaviors within its group, passing skills across generations?
• Communication: Can it use sounds, gestures, or symbols in ways that go beyond instinct?

Each of these abilities reflects a kind of intelligence, though they don’t always look like human smarts. A crow doesn’t need algebra to survive, but its memory for food stashes might outshine ours. A dog may not talk, but it reads our emotions better than most animals on Earth.

So while scientists measure animal cognition in careful ways, we’ve taken a more playful approach: turning those findings into an imaginary Animal IQ scale. 

It’s not about proving animals are “as smart as humans.” It’s about asking: If dolphins, chimps, ravens, foxes, owls, and even sloths all lined up for an IQ exam, who would ace it—and who would nap through it?

Average IQ of Animals Ranked: 27 Smartest to Dumbest Creatures

Here’s our just-for-fun lineup, ranked from the brainiacs of the animal kingdom down to the more instinct-driven survivors:

1. Dolphin — IQ 95
2. Orca (Killer Whale) — IQ 92
3. Chimpanzee — IQ 90
4. Orangutan — IQ 88
5. Bonobo — IQ 87
6. Gorilla — IQ 86
7. Elephant — IQ 85
8. Raven — IQ 80
9. Parrot — IQ 75
10. Dog — IQ 70
11. Pig — IQ 65
12. Cat — IQ 60
13. Octopus — IQ 55
14. Squirrel — IQ 50
15. Fox — IQ 48
16. Rat — IQ 45
17. Horse — IQ 40
18. Owl — IQ 38
19. Shark — IQ 35
20. Chicken — IQ 35
21. Duck — IQ 30
22. Goldfish — IQ 25
23. Rabbit — IQ 22
24. Guinea pig — IQ 20
25. Bee — IQ 18
26. Sloth — IQ 15
27. Snail/Slug — IQ 10

Of course, no dolphin is sitting for an online IQ test, and no owl is filling in scantron bubbles, but these scores give us a fun way to compare how animals show off their intelligence. The numbers may be fake; however, they reflect fundamental differences in how animals solve problems, remember, communicate, and adapt.

Let’s take a closer look at each species to see what earned them their spot.

What Is the IQ of a Dolphin?

On our just-for-fun scale, dolphins score around 95, making them the smartest animals in the kingdom. 

Dolphins are playful, social, and highly adaptable. Their intelligence shows in coordinated hunting, advanced communication, and even self-recognition in mirror tests. Echolocation, which requires complex brain processing, makes them masters of their underwater world.

Fun Fact: Dolphins live in pods and use unique whistles that function almost like names.

What Is the IQ of an Orca (Killer Whale)?

Orcas would likely score around 92 on our scale, making them some of the smartest marine animals alive.

Also known as killer whales, orcas live in tight family pods and display cultural learning—different groups use distinct hunting strategies passed down across generations. They use vocal dialects, cooperate in sophisticated hunts, and even teach young pod members how to catch prey.

Fun Fact: Orcas have been observed working together to create waves that knock seals off ice floes.

What Is the IQ of a Chimpanzee?

Chimpanzees are among the brainiest nonhuman primates, and on our playful IQ chart they’d score close to 90.

Sharing nearly 99% of our DNA, chimps show impressive problem-solving skills, tool use, and memory. They can recognize themselves in mirrors, learn sign language, and even beat humans in some memory games.

Fun Fact: Chimps have been observed using sticks to fish termites out of mounds and leaves to collect water.

What Is the IQ of an Orangutan?

Orangutans would probably land around 88 on our IQ chart, just below chimpanzees.

These solitary apes are incredible problem-solvers and tool users. Orangutans have been observed making umbrellas out of leaves, imitating human actions, and even planning ahead for future needs. Their long-term memory and patience set them apart in the primate family.

Fun Fact: Orangutans use large leaves as makeshift gloves or napkins to handle spiny fruits or wipe their faces.

What Is the IQ of a Bonobo?

Bonobos would likely score near 87, known for their empathy and communication skills.

Closely related to chimpanzees, bonobos excel at cooperation and conflict resolution. They communicate using vocalizations, gestures, and facial expressions and are famous for their peaceful, matriarchal social structures. Studies also suggest they can understand some symbolic language.

Fun Fact: Bonobos share more than 98% of their DNA with humans, just like chimpanzees.

What Is the IQ of a Gorilla?

Gorillas would probably earn about 86 on our imaginary IQ scale, combining strength with surprising smarts.

They form complex social groups and use tools in the wild, such as sticks, to measure water depth. Famous examples like Koko have demonstrated the ability to learn sign language and express emotions, showing a depth of cognition that rivals that of other great apes.

Fun Fact: Gorillas make a new nest out of leaves and branches every single night.

What Is the IQ of an Elephant?

Elephants show remarkable memory and problem-solving, which would earn them about 85 on a hypothetical IQ test.

These gentle giants have some of the largest brains of any land animal, with complex social bonds and behaviors. They’re known for cooperation, long-term memory, and even grieving rituals.

Fun Fact: Despite their size, elephants are excellent swimmers.

What Is the IQ of a Raven?

Ravens rival some primates in smarts and would likely score near 80 if animals took IQ tests.

As members of the corvid family, ravens are skilled toolmakers and problem-solvers. They cache food in hidden spots, understand cause and effect, and even play tricks on each other.

Fun Fact: Ravens can work together to complete tasks that require cooperation.

What Is the IQ of a Parrot?

Parrots are gifted communicators, and in our ranking they’d land around 75 on the IQ scale.

Known for mimicry, parrots also show reasoning and problem-solving. African greys, for example, can categorize objects by color and shape and understand concepts like “same” and “different.”

Fun Fact: Some parrots can learn hundreds of words and even string them into meaningful phrases.

What Is the IQ of a Dog?

Dogs vary by breed, but the average dog would probably sit around 70 on this imaginary IQ chart.

Man’s best friend is also one of the most versatile learners. Dogs excel at reading human expressions, following gestures, and performing complex tasks. Intelligence varies by breed, with border collies, retrievers, and shepherds often topping the list.

Fun Fact: Dogs can understand up to 250 words and gestures.

What Is the IQ of a Pig?

Pigs are surprisingly sharp thinkers, which would put them at roughly 65 in an “if animals had IQs” scenario.

Research shows pigs can learn symbols, solve mazes, and even play simple video games. They display emotional intelligence, empathy, and strong social awareness.

Fun Fact: Pigs have an incredible sense of smell that rivals dogs.

What Is the IQ of a Cat?

Cats use cunning and adaptability to thrive, so we’d place them near 60 on our fun IQ scale.

Feline intelligence is honed by hunting instincts and adaptability. Cats problem-solve, remember pathways, and even manipulate owners to get what they want.

Fun Fact: Cats can leap six times their body length in a single bound.

What Is the IQ of an Octopus?

Octopuses would likely earn about 55, showing off puzzle-solving and escape-artist skills.

These escape artists can open jars, solve puzzles, and use tools. With distributed intelligence in their arms, octopuses process information in unique ways.

Fun Fact: An octopus can squeeze through an opening the size of a coin.

What Is the IQ of a Squirrel?

Squirrels rely on memory and clever food-stashing, which would score them around 50 in our ranking.

They’re masters of caching, hiding food in countless locations and remembering where they stashed it. Their quick reflexes and adaptability help them thrive in both forests and cities.

Fun Fact: Squirrels sometimes “fake bury” food to throw off potential thieves.

What Is the IQ of a Fox?

Foxes would probably score around 48 on our Animal IQ scale, combining cleverness with adaptability.

Often seen as cunning in folklore, foxes are skilled problem-solvers in the wild. They can outsmart predators, raid human food sources, and adapt quickly to new environments. Their ability to learn, explore, and strategize shows a crafty kind of intelligence.

Fun Fact: Urban foxes have been observed using traffic lights and crosswalks to navigate city streets safely.

What Is the IQ of a Rat?

Rats are social problem-solvers, and on our chart they’d come in close to 45.

They’re problem-solvers, quick learners, and socially intelligent. Rats show empathy toward each other and can navigate complex mazes with ease.

Fun Fact: Rats laugh when tickled—though it’s at a pitch too high for humans to hear.

What Is the IQ of a Horse?

Horses are strong learners with excellent memory, so we’d place them near 40 on this scale.

Known for strong memory and learning, horses also display emotional sensitivity and can read human body language. Their social intelligence shines in herds, where they form bonds and hierarchies.

Fun Fact: Horses can see almost 360 degrees around them without turning their heads.

What Is the IQ of an Owl?

Owls would likely score near 38, smart hunters with a reputation for wisdom.

While their “wise” image comes more from symbolism than science, owls do show impressive skills. They have extraordinary night vision, can pinpoint prey using sound alone, and learn effective hunting strategies in different habitats.

Fun Fact: Some owl species can rotate their heads up to 270 degrees without injury.

What Is the IQ of a Shark?

Sharks wouldn’t score as high as mammals or birds, but on our fun scale they’d land around 35.

Their intelligence shows up in ways tied to survival: sharks use keen senses like smell, vision, and electroreception to find prey, and they navigate long migrations by sensing Earth’s magnetic field. They also display strategic hunting behaviors that look a lot like problem-solving.

Fun Fact: Some shark species can detect a single drop of blood in the water from miles away.

What Is the IQ of a Chicken?

Chickens are smarter than many assume, which would give them about 35 points in our ranking.

They can distinguish up to 100 faces, solve simple puzzles, and use distinct alarm calls for different predators. Chickens also learn from each other’s experiences.

Fun Fact: Chickens have at least 24 unique vocalizations.

What Is the IQ of a Duck?

Ducks show solid memory and navigation skills, landing them around 30 on the imaginary IQ chart.

They communicate with varied vocalizations and body language, and they can learn routines quickly. Ducks are also excellent navigators, migrating thousands of miles.

Fun Fact: Not all ducks quack—some whistle, grunt, or coo.

What Is the IQ of a Goldfish?

Goldfish often surprise researchers, and on our scale they’d earn about 25.

These fish remember routines for months, can be trained to navigate mazes, and recognize their feeders. Their learning capacity is much greater than the “3-second memory” myth.

Fun Fact: Goldfish can recognize human faces.

What Is the IQ of a Rabbit?

Rabbits might score around 22, showing modest but surprising intelligence for a small mammal.

They can learn their names, recognize routines, and remember safe pathways in and out of their burrows. Pet rabbits often surprise owners with problem-solving skills, from opening cage latches to figuring out how to get treats.

Fun Fact: Rabbits can be litter-trained much like cats.

What Is the IQ of a Guinea Pig?

Guinea pigs are sensitive and social learners, which would place them near 20 on the list.

They learn names and pathways, and they communicate through a wide range of vocalizations. Guinea pigs are empathetic, showing stress when cage mates are distressed.

Fun Fact: Guinea pigs can squeak, purr, and even whistle.

What Is the IQ of a Bee?

Bees would likely land around 18, proving that even tiny brains can be remarkably smart.

Honeybees use the famous “waggle dance” to tell hive mates where to find food, showing both communication and spatial awareness. They can also learn patterns, remember flower locations, and adjust behaviors based on experience.

Fun Fact: Bees can recognize human faces—a rare ability in the insect world.

What Is the IQ of a Sloth?

Sloths would likely score around 15 on our just-for-fun scale, putting them near the bottom of the rankings.

Known for their extremely slow movements and low-energy lifestyle, sloths rely more on instinct than problem-solving. That doesn’t mean they’re “dumb”—their slowness is actually a survival strategy, helping them avoid predators by blending into their environment.

Fun Fact: Sloths can rotate their heads nearly 270 degrees thanks to extra neck vertebrae.

What Is the IQ of a Snail or Slug?

Snails and slugs rely on simpler forms of learning, so they’d come in around 10 at the bottom of our fun ranking.

Though simple compared to mammals, they can form memories through conditioning and use chemical cues to navigate. Their survival adaptations may not look “smart” to us, but they work.

Fun Fact: Some snails use “love darts” during courtship.

How Does Animal Intelligence Really Compare to Human Beings?

Animal intelligence is measured differently from human IQ, so direct comparisons don’t really work. Humans excel at abstract reasoning, language, creative intelligence, and building technology, but that doesn’t mean animals rank lower across the board.

Think back to our Animal IQ list. A dolphin might score a 95 and a sloth a 15, but those numbers don’t tell the whole story. Each species is “smart” in the ways that help it survive. A crow can remember hundreds of food stashes months later—something most of us would fail at. An octopus can solve puzzles and escape locked tanks. Even chickens, often underestimated, use more than 20 distinct calls to warn or guide their flock.

Where humans stand out is in cumulative culture—passing knowledge across generations, stacking discoveries, and creating complex systems like language and science. But animals shine at ecological intelligence: the skills, memory, and communication that keep them alive in their environments.

And sometimes, animals even beat us at our own game. Chimpanzees have outperformed humans in memory tests, and pigs have shown cognition on par with preschool children. If anything, this shows how limited our measuring stick really is—most studies test animals on human abilities, not the skills that actually matter in their world.

So, while our imaginary Animal IQ scores make for fun comparisons, the real lesson is this: intelligence isn’t a ladder with humans at the top—it’s a web of different abilities, each brilliant in its own way.

Animal Intelligence Is More Than Just a Number

Our Animal IQ scale is a fun way to imagine how different creatures might score if they sat for a test—but real intelligence isn’t just about solving puzzles or remembering facts. Many animals also show signs of empathy, cooperation, and social bonding. In other words, they display something closer to what we’d call social intelligence. 

And that brings it back to us. Human intelligence isn’t measured by IQ alone, either. Emotional intelligence—how well we understand and manage our feelings and relationships—can be just as important as problem-solving or memory.

So, while dolphins, chimps, and even chickens remind us that smarts come in many forms, maybe the real takeaway is this: intelligence isn’t only about brains, it’s about heart, too. 

Curious how you measure up? Try exploring both your IQ and EQ to get the full picture of your own strengths.