The new research shows that dolphins have the longest memory yet known in any species other than people. Elephants and chimpanzees are thought to have similar abilities, but they haven't yet been tested, said study author Jason Bruck, an animal behaviorist at the University of Chicago.
It's a common saying that elephants never forget. But the more we learn about elephants, the more it appears that their impressive memory is only one aspect of an incredible intelligence that makes them some of the most social, creative, and benevolent creatures on Earth.
Remarkable recall power, researchers believe, is a big part of how elephants survive. Matriarch elephants, in particular, hold a store of social knowledge that their families can scarcely do without, according to research conducted on elephants at Amboseli National Park in Kenya.
Elephants are the largest land mammals on earth and have quite the memory to go along with their massive size. While the old saying may be exaggerated, it's more true than not. An elephant's memory is key to its survival and, sometimes, its herd's.
An elephant has a very large brain for its size and the 'temporal lobe' region responsible for memory is more developed with a greater number of folds – this results in powerful abilities to 'download' important survival data such as where to find food and water, and who is friend or foe.
Marine mammals can remember their friends after 20 years apart, study says. New experiments show that bottlenose dolphins can remember whistles of other dolphins they'd lived with after 20 years of separation.
A comparable study on chimpanzees found that bees had the worst memory, with a recall duration of just 2.5 seconds. Also earning bees a spot on the list of top 10 animals with the worst memory in the world.
“The pressure to remember individuals successfully may have been a push not only for dolphin cognitive evolution, but for the complex abilities found in crows, parrots, ravens, chimps, elephants and even us humans.” This is known as the Social Intelligence Hypothesis. A dolphin's long memory might offer other benefits.
Yet, in a lesson to us all, elephants are well known to be intuitive and proactive when humans are in distress. They have caught on camera multiple times rescuing, protecting, or helping people.
Elephants do grieve, and they are one of the few animals who are similar to humans in mourning patterns. Believe it or not, elephants cry.
CHIMPANZEES. RECKONED to be the most-intelligent animals on the planet, chimps can manipulate the environment and their surroundings to help themselves and their community. They can work out how to use things as tools to get things done faster, and they have outsmarted people many a time.
The shortest type of memory is known as working memory, which can last just seconds. This is what we use to hold information in our head while we engage in other cognitive processes.
The goldfish is the happiest animal because it has a ten second memory -Ted Lasso: Don't be a goldfish write it down notebook.
These animals are primitive or simplest animals. The primitive organisms are sponges. They essentially have no brain or nervous tissue. Sponges survive on the sea floor by taking nutrients into their porous bodies.
Hippopotamuses
This makes it obvious to see why we never managed to domesticate them. There were several attempts, however, but they all failed. Many attempts ended up with humans being killed by hippos.
The encephalization quotient (EQ) (the size of the brain relative to body size) of elephants ranges from 1.13 to 2.36. The average EQ is 2.14 for Asian elephants, and 1.67 for African, with the overall average being 1.88.
Nociceptors have also been found in elephants along with the central nervous system structures thought to be implicated in the processing and interpretation of pain information. We thus infer that elephants are capable of experiencing pain as are humans.
Elephants support the lives of other animals and keep their environment functioning, playing a critical role in maintaining habitat. Without elephants, ecosystems would crumble. They are engineers of biodiversity.
Leonardo da Vinci is said to have possessed photographic memory. Swami Vivekananda is believed to have eidetic memory as he could memorize a book just by going through it for a single time. The mathematician John von Neumann was able to memorize a column of the phone book at a single glance.
The Greenland shark has the longest known life span of all vertebrates, estimated to be between 300 and 500 years. Found in the North Atlantic and Arctic Oceans, the species can reach an astonishing 21 feet in length and mostly eats fish, but has been spotted hunting seals.
Humans retain different types of memories for different lengths of time. Short-term memories last seconds to hours, while long-term memories last for years. We also have a working memory, which lets us keep something in our minds for a limited time by repeating it.
Mantis shrimps probably have the most sophisticated vision in the animal kingdom. Their compound eyes move independently and they have 12 to 16 visual pigments compared to our three. They are the only animals known to be able to see circular polarised light.
The most complex brains are found in squids (Theutidae) and octopods (Octopoda) [7]. The nervous system and brain of Octopus is the largest and most complex one among invertebrates [19,20].
Memory Span
"Dogs forget an event within two minutes," reported National Geographic, citing a 2014 study performed on various animals from rats to bees. Other animals have long-term memories, such as dolphins, but dogs don't seem to have a long-term memory that lasts much beyond those two minutes.