the normal memory span for a person is about 30 years
Giraffes really have a very short Memory Span ..so short that it would be difficult to say.
It depends on the human's memory strength.
A finch's memory span can vary but generally lasts a few months. They have been known to remember specific locations and food sources for an extended period.
not me. so far.
20 years
Not quite. They only have a memory span for three seconds. Then they forget everything all over. I am not an expert but I heard it on tv, you should google it.
They have an extremely long memory span. Donkeys can remember things for their entire lifetimes and often show this by behaving in specific ways.
Sharks
What? I can't remember. What was the question?
At least three months.
Gold fish?