Based on the number of neurons found, they speculated that dogs have roughly the same intelligence as raccoons and lions, while domestic cats have comparable intelligence to bears. For comparison, humans have by far the highest number of neurons in our cerebral cortexes—as many as 16 billion per person.
Cats can learn tricks, recognize their names, understand basic commands, and have a longer-lasting memory than dogs.
The ability to learn by watching others is considered a real sign of intelligence. It would put lions in the company of the brightest minds in the natural world.
Yes, lion and tiger powerful and smart also. But wolves the smartest animal. Because they'll ignore trainer in the circus.
Chimpanzees
This research has firmly established that chimps are one of the most intelligent species on earth.
First up, unsurprisingly, is cetaceans - or for the purpose of this article, dolphins and whales. These creatures are supremely intelligent, with some scientists arguing that they are the most intelligent creatures on our planet.
Dolphins are often cited as the second smartest animals on Earth due to their relatively high brain-to-body size ratio, the capacity to show emotion, and impressive mimicry of the dumb apes who research them.
As the King of the Jungle, the lion may have the brawn, but it is the tiger that has the brains, claim scientists. Researchers have discovered that the tiger has a far bigger brain than its big cat rival, even though it is often seen as lower down the food chain.
The average dog's IQ is about 100. Based on the results done to test a dog's IQ, it turned out that dogs, even the average ones, have the IQ same as a 2-years old human.
Dogs, it turns out, have about twice the number of neurons in their cerebral cortexes than what cats have, which suggests they could be about twice as intelligent.
Horses and Dogs are both intelligent animals, but they have different cognitive strengths. Horses excel in areas like navigational intelligence while dogs do better with social intelligence. Neither animal is smarter than the other, that's just what makes them unique!
In terms of muscular strength, tigers are stronger. Lions live in Africa and India. Lions are the second largest of the five big cats in the genus panthera.
If we judge their behavior on human standards, lions actually are fairly brave. Though they probably don't experience the feelings of bravery quite like we do, they're not afraid to hunt big, dangerous prey.
Koalas. Koalas are not only extremely cute, they're smart, too! The marsupials know how to listen to their bodies and can dive into a deep sleep for an average of 22 hours a day. Koalas snack on eucalyptus leaves, which aren't high in nutrients—the abundant rest makes this diet possible.
The human brain is about three times as big as the brain of our closest living relative, the chimpanzee. Moreover, a part of the brain called the cerebral cortex – which plays a key role in memory, attention, awareness and thought – contains twice as many cells in humans as the same region in chimpanzees.
Dolphins demonstrate the ability to do all of these things and most scientists agree that dolphins are very intelligent. They are notoriously talented mimics and quick learners; they demonstrate self-awareness, problem-solving, and empathy, innovation, teaching skills, grief, joy and playfulness.
They learn faster than dogs or primates and their intelligence is compared to that of a three year old child. Cows have excellent problem solving skills that involve logic. Once they master how to solve a problem, they celebrate jumping, wagging their tails and running happily.
Silkworms have animal have 11 brains.
The brain, which serves as the silkworm's primary control centre, is situated in the centre of the head.
Isaac Newton — a mathematician, physicist, inventor, economist, and theologian — was the smartest person ever to have lived. His unparalleled brilliance, however, came at a very steep cost.