shouldn't "the elephant has very good memory" be added?
I was just about to comment the same thing! I reported it- 5/18/2017.
+1. And is "a memory" correct at all? It is uncountable in this context, isn't it?
"a memory" is fine and more idiomatic in English. (I wouldn't mark it wrong without the article though.)
Here's needs the article "the" for "The elephant"? Thank you!