While pinpointing a single "smartest" fish is tough, Manta Rays are top contenders due to their large brains, problem-solving skills, and potential self-awareness (mirror recognition), alongside other highly intelligent fish like the Elephant-nose Fish (huge brain-to-body ratio for electrocommunication) and Blue Cleaner Wrasse (long-term memory for client fish). Other smart species include Cichlids (complex care), Archerfish (tool use), and even Goldfish, known for impressive learning and memory.
We humans tend to believe that any organism that does not think like us is unintelligent, when in fact, quite the contrary is true. A freshwater salmon has a staggering IQ of 130, while the average human IQ is just 100. Apart from IQs and numbers, fish have remarkable abilities to survive underwater.
Chimpanzees have been subjected to countless hours of research with the goal of better understanding their cognition. The result is that we can confidently say that chimps are one of the most intelligent species on earth. Humans share 99 percent of our DNA with chimps, so this should come as no surprise.
Oscar fish are highly intelligent and naturally curious creatures. Many owners report that their Oscars recognize them and will actively beg for food, often responding to their presence at the tank. Their interactive nature makes them engaging pets.
Red Sea clownfish can recognize their mate after 30 days separation. A number of studies have shown that fish can retain information for months or years. Anecdotally, channel catfish (Ictalurus punctatus) can remember the human voice call announcing food five years after last hearing that call.
Elephants are famous for their long-spanning memory and high levels of intelligence.
Self-awareness isn't standard among underwater creatures, but manta rays defy this norm. These intelligent sea creatures can recognize their reflection — no other fish can. Manta rays are also playful and social, congregating in schools often.
Although you should not touch your fish there are some fish that will still interact with their owners. Among the most interactive freshwater fish, the Oscar fish is a popular choice. Oscars are intelligent and can recognize their owners, they are also known for their playful and curious nature.
When kept in isolation, fish can also get depressed. Research has found that fish lose interest in exploring and eating. Just like us, when we feel depressed, we are withdrawn.
Number 1: Border Collie.
Encephalization quotient?!
Humans, as you could probably guess, have the largest quotient, at a whopping 7. Dolphins aren't far off us, at around 5. Your pet dog is in at around 3. It may be due to this that dolphins have so many traits that we see among human toddlers.
Orangutans have been noted to have an IQ of between 70 and 95, with a normal human IQ being 100. Orangutans showcase their remarkable intelligence through a variety of behaviors. They are adept at using tools to solve problems, such as using sticks to extract insects or fashioning leaves into makeshift gloves.
They were also able to adjust their behavior when obstacles were added to their tanks, relying on learning and memory. While a definitive determination cannot be made, fish have performed as well or better than dogs on some intelligence tests.
The northern right whale dolphin has an EQ of approximately 5.55; the common bottlenose dolphin of 5.26; the tucuxi dolphin of 4.56; the orca of 2.57; the pygmy sperm whales of 1.78; the narwhals of 1.76; the La Plata dolphin of 1.67; the Ganges river dolphin of 1.55; the sperm whales of 0.58; the dwarf sperm whale of ...
Rats have been proven to have an IQ of 105 which is comparable to the average IQ of the 18 or 19 year old human they are considered one of the smartest rodent species in the world. Rats remember which humans have played with them in the past, and prefer to spend time with those people.
How do blind fish survive? You might be wondering how difficult it must be to be without eyesight in such a dangerous environment surrounded by predators, but blind fish are remarkably adapted to make the most of their surroundings, even if they are still vulnerable.
As long as it is the only mid-water/top-water fish in the tank it will be fine. My breeding pair of Oscars are in a 75 and they have clown loaches and a couple plecos for tank mates. As long as you have adequate filtration it will be fine.
1. Exodons. Exodons paradoxus (aka bucktooth tetra) is arguably one of the most aggressive fish you can add to your fish tank.
Most scientists believe the chimpanzee is the “smartest animal in the world,” behind humans.
Guppy (Poecilia reticulata)
Guppies are one of the most popular beginner fish for the freshwater aquarium, and it's no wonder. They are very easy to care for, they breed readily, they come in a wide range of beautiful colors, and they get along well with other fish that are similar in size and temperament.
The #1 rarest fish is often considered the Devil's Hole Pupfish (Cyprinodon diabolis) due to its incredibly small habitat in a single Nevada cavern, though some sources cite the Red Handfish as rarer, with only around 100 individuals left in Tasmania; both face critical endangerment, but the Pupfish lives in the smallest known home for any vertebrate.
Koalas are thickset arboreal marsupials with a thick grey fur. Found only living in Australia, they mainly live in the eucalyptus trees and spend around 22 hours of their time sleeping (90%).
Leeches have 32 brains. Humans love to think we're the brainiest species around, but leeches have an impressive 32 brains (making them absolute shoo-ins if Mensa ever expands their ranks to include nonhuman animals).
The Secret Seven – Africa's Elusive Safari Animals