1. Dolphins Humans use the intelligence of dolphins to solve many mysteries in the world's oceans. Dolphins are the only marine animals that pass the mirror test, and their brains are large compared to their size. It can express different types of emotions, and when resting, the dolphin's brain rests while establishing a sense of protection.
2. Otters Otters are living on river banks and seashores. Using tools such as rocks to find food, sea otters are keenly aware of the presence of predators by catching differences in the vibrations of the water. The sea otter's childlike behavior itself reflects its intelligence, and will dance and glide through riverbanks and mud.
3. Hominids According to many scientific theories, humans evolved from a family of hominids. Hominids follow an extreme social life and express different types of emotions. The hominid family includes chimpanzees, gorillas, and bonobos. Gorilla DNA is similar to human DNA and hominids can understand personality and learn words and even human language. Will use tools to defend against enemies.
4. Crows Crows are one of the most numerous birds in the world. They have no fear of human presence and have a bewildering innate intelligence that makes them smart enough to cause problems for humans. The skills used by crows in finding food and building nests reflect the bird's unmatched intelligence. Crows use different tools, such as rocks and pebbles, to attack predators in the bird world. Crows observe the human world more closely in search of food. For example, crows used to throw nuts in traffic lanes to break the shell for food. They are smart enough to recognize human faces and can hide food from other birds. Crows are also known for using different tools to their advantage.
5. Octopus The octopus is the most intelligent and sentient creature among invertebrates. They sense the presence of enemies and use a variety of trickery shows the power of octopus intelligence. Baby octopus can easily learn the habits of other octopuses, the octopus releases a black ink, and has the ability to hold its sense of smell when it is detected by others. The octopus has the ability to change the shape of its body in many places to avoid predators.
6. Ants As the smallest member of the animal kingdom, ants do not have a very large body size. Ants evolved during the time when dinosaurs roamed the earth, and some special species of ants will enslave other species to establish their own colonies. Ants can carry objects up to 50 times larger than their bodies. This is because the thickness of their muscles is proportional to their body size. Ants travel by following pheromone chemicals placed by scout ants responsible for finding food. Interestingly, each ant provides clues to the ants below. Ants form well-planned colonies, thousands of miles long, with different sections for farming, gathering food and collecting food. Each colony has a unique chemical characteristic by which they recognize strangers.
7. Dogs Man's best playmate, dogs understand the human world better than other animals. Their brains can recognize millions of scents and can respond to their owners' commands. Have an excellent sense of smell and the ability to learn from the human world.
8. Pigs Pigs are one of the extremely intelligent, playful and social animals in the animal kingdom. According to seven studies, pigs have greater cognitive abilities than dogs and human babies. Pigs follow a charming social life; they walk together, they eat together, they play together, and they sleep well. Pigs communicate with each other in 20 different vocalizations, and even newborn pigs can understand exactly what the sounds their sows make mean. Wild pigs have been the site of growing new plants and play an important role in seed transport.
9. Whales Training whales can be a difficult task due to their large size. At the same time, the whales' social behavior, communication skills and imitation abilities make them one of the most intelligent animals. Cognitive abilities are achieved through the presence of spindle cells in the brain. They are extremely social, traveling and hunting in groups. Whales communicate with each other by producing complex vocal tones.
10. Elephants Elephants are also one of the faithful playmates of humans, and are extremely social animals that can easily learn from their surroundings. Elephants can recognize hundreds of different sounds and can imitate a wide variety of sounds. The ability to use different tools to find food, elephants can show a range of emotions, such as joy, playfulness and sadness.
