يحافظ الزائر على الحياة الفطرية ولا يزعجها.

Because Arabic very often allows — and often prefers — a verb–subject order, especially in straightforward statements.

So:

• يحافظ الزائر = The visitor preserves / protects
• literally: preserves the visitor

In English that sounds backward, but in Arabic it is normal.

You could also say:

• الزائر يحافظ على الحياة الفطرية

This is also correct, but it slightly shifts the feel toward The visitor does preserve/protect wildlife or simply puts more focus on the visitor.

In Arabic, when the verb comes before the subject, it is often kept in the singular form, even if the subject is plural.

In your sentence, the subject is singular anyway:

• الزائر = the visitor (singular)

So يحافظ is singular masculine, which matches perfectly.

If the subject were plural, Arabic would often still use a singular verb first in this word order. That is something English speakers often notice because it works differently from English.

The verb يحافظ usually goes with the preposition على.

So:

• حافظ على شيء = to preserve / protect / maintain something
• يحافظ على الحياة الفطرية = he preserves/protects wildlife

This is just how the verb is used idiomatically.
You usually should learn it as a unit:

• يحافظ على = to preserve / maintain / protect

Without على, the meaning would sound incomplete or unnatural here.

يحافظ comes from حافظَ and ultimately from the root:

• ح ف ظ

This root is connected with meanings like:

• preserving
• guarding
• protecting
• keeping

The verb حافظَ is a Form III verb.
Its present tense is:

• يُحافِظُ = he preserves / protects

A learner does not need to master all the form terminology immediately, but it helps to know that this is not the simple basic verb form. It belongs to a common derived pattern.

In Arabic, adjectives usually come after the noun they describe.

So:

• الحياة = life
• الفطرية = natural / instinctive / wild depending on context

Together:

• الحياة الفطرية = literally the natural life
• in context: wildlife

The adjective الفطرية comes after الحياة because that is the normal Arabic order:

• noun + adjective

not

• adjective + noun

Because Arabic adjectives agree with the nouns they describe in definiteness.

Here:

• الحياة is definite because it has الـ
• so the adjective must also be definite:
• الفطرية

So:

• الحياة الفطرية = the wildlife / the natural life

If the noun were indefinite, the adjective would also be indefinite.

This matching is very important in Arabic adjective phrases.

Because it is describing الحياة, and الحياة is a feminine singular noun.

Arabic adjectives must agree with the noun in:

• gender
• number
• definiteness
• case (in fully vowelled Arabic)

So:

• الحياة = feminine singular
• الفطرية must also be feminine singular

That is why the adjective ends with ـية here.

ولا here is made of two parts:

• و = and
• لا = not / does not

So:

• ولا يزعجها = and he does not disturb it

This is a very common combination in Arabic.

The sentence structure is:

• يحافظ الزائر على الحياة الفطرية = The visitor preserves wildlife
• ولا يزعجها = and does not disturb it

يزعجها breaks down like this:

• يزعج = he disturbs / bothers
• ها = her / it

So:

• يزعجها = he disturbs it

The pronoun ها refers back to:

• الحياة الفطرية

Since الحياة is grammatically feminine singular, Arabic uses the feminine singular object pronoun:

• ها

Even though English says wildlife and treats it as it, Arabic is following the grammar of الحياة, which is feminine.

Because Arabic grammatical gender is not the same as biological sex.

The word being referred to is:

• الحياة

And الحياة is a feminine noun grammatically.

So Arabic uses:

• ها = it / her for feminine singular nouns

Here it should be understood as it, not as a female person.

English speakers often need to get used to this: Arabic pronouns agree with the noun’s grammatical gender, not necessarily with natural gender.

Because Arabic often attaches object pronouns directly to the verb as suffixes.

So instead of saying something like:

• he disturbs it

with a separate word for it, Arabic says:

• يزعجها

where ها is attached to the verb.

This is extremely common in Arabic:

• يراه = he sees him/it
• يعرفها = he knows her/it
• يحترمهم = he respects them

So يزعجها is a very normal Arabic structure.

الحياة الفطرية usually means wildlife or natural living creatures in their natural environment.

It is broader than just:

• الحيوانات = animals

And it is not exactly the same as:

• الطبيعة = nature

So in this sentence:

• الحياة الفطرية is best understood as wildlife

This makes sense in a context like signs in parks, nature reserves, or tourist instructions.

Yes. الزائر literally means the visitor or a visitor depending on context, but with الـ here it is definite:

• الزائر = the visitor

In public signs and instructions, Arabic often uses a definite singular noun like this to mean a generic person of that type.

So this sentence does not necessarily refer to one specific visitor. It can mean something like:

• A visitor should preserve wildlife and not disturb it
• The visitor preserves wildlife and does not disturb it

In context, it often has the force of a rule or expected behavior.

Grammatically, it is a present-tense statement:

• The visitor preserves wildlife and does not disturb it

But in real-life context, especially on signs or in educational materials, it often functions like an instruction or rule:

• Visitors should preserve wildlife and not disturb it
• A visitor must not disturb wildlife

Arabic often uses the present tense this way to express general expected behavior.

A careful pronunciation would be approximately:

• yu-ḥā-fiẓu z-zāʾiru ʿalā l-ḥayāti l-fiṭriyyati wa-lā yuzʿijuhā

A few useful notes:

• الزائر is pronounced with a doubled z sound after الـ because ز is a sun letter, so ال assimilates:
  az-zāʾir rather than al-zāʾir
• على has the consonant ʿayn, which has no exact English equivalent.
• الفطرية contains ṭ, an emphatic t sound.

You do not need perfect pronunciation immediately, but these are the main features a learner might notice.

Yes, literally يزعج can mean:

• annoy
• bother
• disturb

But in this sentence, disturb is the best choice because the context is wildlife.

So:

• ولا يزعجها = and does not disturb it

Using annoy in English would sound too personal or casual here. For animals and wildlife, disturb is much more natural.