Kelebekler ve arılar ortalık sakinleşince yeniden ortaya çıktı.

Here ortalık does not literally mean just the middle.

In this sentence, ortalık means something like:

• the surroundings
• the situation
• the scene
• things around them

In the expression ortalık sakinleşince, it is very natural to translate it as:

• when things calmed down
• once the commotion died down
• when the situation became calm again

So this is a fairly idiomatic use.

sakinleşince comes from:

• sakin = calm
• sakinleşmek = to become calm / to calm down
• sakinleşince = when it became calm / once it calmed down

The ending -ince / -ınca is a very common Turkish suffix that means:

• when
• once
• after

So ortalık sakinleşince means when things calmed down.

Because -ince creates a subordinate time clause, not a full main verb in the same way English does.

So instead of saying something like:

• when the surroundings calmed down

Turkish says:

• ortalık sakinleşince

The main tense of the whole sentence is shown by the main verb:

• çıktı = appeared / came out

So the sentence is understood as past overall because the main verb is in the past.

ortaya çıkmak is a very common Turkish expression meaning:

• to appear
• to emerge
• to show up
• to come out into the open

It is made of:

• orta = middle
• ortaya = to the middle / into the open
• çıkmak = to go out / come out

So literally it is something like to come out into the open, but in natural English here it means to reappear or to appear again.

Because yeniden adds the idea of again or anew.

So:

• ortaya çıktı = appeared / came out
• yeniden ortaya çıktı = appeared again / reappeared

That means the butterflies and bees were there before, disappeared or stayed out of sight, and then came back.

This is a very common feature of Turkish.

In Turkish, when the subject is already clearly stated, the verb often stays in 3rd person singular form, especially with non-human plural subjects like animals or things.

So:

• Kelebekler ve arılar ortaya çıktı = natural
• Kelebekler ve arılar ortaya çıktılar = possible, but less neutral and often more marked

For animals and objects, singular verb agreement is especially common.

Yes, it can be used, but çıktı is more natural in a neutral sentence like this.

Using çıktılar may sound:

• more emphatic
• more literary in some contexts
• more person-like, depending on the sentence

For a learner, the safest takeaway is:

• with an explicit plural subject, Turkish often does not need a plural verb
• with non-human subjects, singular verb is very common

Both can often mean again.

In many cases, they are close in meaning:

• yeniden = again, anew
• tekrar = again, once more

In this sentence, yeniden ortaya çıktı sounds very natural for reappeared.

Very roughly:

• yeniden can feel a bit like anew / once again
• tekrar is the more direct again

But in everyday Turkish, there is a lot of overlap.

Yes, the word order is normal, and Turkish word order is fairly flexible.

This sentence is:

• Kelebekler ve arılar = subject
• ortalık sakinleşince = time clause
• yeniden = adverb
• ortaya çıktı = main verb

A very natural alternative would be:

• Ortalık sakinleşince kelebekler ve arılar yeniden ortaya çıktı.

That version puts the when-clause first, which is also very common in Turkish.

The main thing that usually stays the same is that the main verb tends to come at the end.

çıktı is the simple past with the ending -dı / -di / -du / -dü.

Here:

• çık- = come out / appear
• çıktı = came out / appeared

This is the standard past tense used for completed actions.

So the sentence describes a finished event in the past: after things calmed down, the butterflies and bees appeared again.

Turkish does not have a word exactly like English the.

So:

• kelebekler can mean butterflies or the butterflies
• arılar can mean bees or the bees

Context tells you whether the meaning is definite or general.

In this sentence, the meaning is clearly specific, so English naturally uses the: the butterflies and bees.