"De schildpadden slapen hier en de muizen slapen daar."

Translation: The turtles sleep here and the mice sleep there.

[danhan97]

Sounds like a party!

[AlsEenPoffertje]

Is it possible to replace "daar" with "er?" If not, why?

[WarmFoothills]

You can't replace daar with er in this sentence. Er is used when there refers to something said earlier. For instance: Zie ik je morgen bij mij thuis? (Will I see you tomorrow at my place?). Ok, maar ❤❤❤ kom je daar/er (Ok, but how do you get there?).

[GrnpcFTMarkRMOwl]

OK, something said earlier, or as the general relative pronoun as in "There are," "Zijn er meisjes of jongens?", as we see in an exercise....

[AlsEenPoffertje]

Ah, I complete forgot that it had to be used to refer to something said earlier. Thanks!

[xMerrie]

Very late reply, but others might be interested.

No, you cannot replace either 'hier' or 'daar' with 'er' in this sentence. Because a comparison is made ("here" vs "there), there is a natural emphasis on these words, hence 'er' (the unstressed form) cannot be used. :)