Quite a long time but also take into consideration that a long life for a guppy is around 2 years. They quickly learn and remember who feeds them and where to go for food. They also learn to hide if they see someone aproach their tank with a net after experiencing it a couple of times. They learn to avoid certain areas that are or may be inhabited by predators. I would say that their memory would be on a par with ours and most other living creatures. All creatures have to have the ability to learn by experience and remember certain things in order to survive.
It depends on the human's memory strength.
They have an extremely long memory span. Donkeys can remember things for their entire lifetimes and often show this by behaving in specific ways.
A finch's memory span is within a couple of months.
456 years
the normal memory span for a person is about 30 years
Sharks have been shown to exhibit long-term memory capabilities, with some studies suggesting they can remember information up to several years. However, the exact duration of a shark's memory span can vary depending on the species and the specific context.
It actually has a memory span of a month. I read this in a book. Don't blame me if it is wrong. This is because a goldfish always recognizes it's owner, knows when it should be fed. It only has the attention span of 3 seconds.
A cat's memory span is typically around 16 hours, which is relatively short compared to other animals. Some animals, like elephants and dolphins, have much longer memory spans that can last for years.
Giraffes really have a very short Memory Span ..so short that it would be difficult to say.
A monkey's memory span varies between the different types of monkeys, so there is no single answer to this question. In general, a monkey's memory span is comparable to that of a child of about 7 or 8 years old. It can remember things for months, even years, and a monkey's short-term memory is usually very good.
Turkeys have a relatively short memory span, generally estimated to be around 5 to 15 minutes. They can remember certain things, such as the locations of food and water, but their ability to retain information for longer periods is limited. Factors like stress and environmental changes can also affect their memory. Overall, while they may not have a long memory, turkeys are capable of learning and adapting to their surroundings within their short-term memory capabilities.
20 years