Responsabilizarse protege el bienestar animal.

Because here it works like a noun idea in English, similar to taking responsibility or being accountable.

In Spanish, an infinitive can act as the subject of a sentence:

• Fumar es malo. = Smoking is bad.
• Leer ayuda mucho. = Reading helps a lot.
• Responsabilizarse protege el bienestar animal. = Taking responsibility protects animal welfare.

So responsabilizarse is the thing doing the action of protege.

Because responsabilizarse is a pronominal verb. The se is part of the verb in this meaning.

• responsabilizar can mean to hold someone responsible
• responsabilizarse means to take responsibility or to make oneself responsible / be accountable

So in this sentence, it is not just responsabilizar, but specifically responsabilizarse, because the idea is that someone assumes responsibility themselves.

Because protege is the conjugated verb, while proteger is the infinitive.

Here the structure is:

• Responsabilizarse = subject
• protege = main verb, he/she/it protects
• el bienestar animal = object

Since responsabilizarse is treated as a singular idea, the verb is in the third person singular:

• Responsabilizarse protege...

This is like saying in English:

• Taking responsibility protects...

Not Taking responsibility to protect... in this structure.

Because the subject, responsabilizarse, is a single action or concept.

In Spanish, an infinitive used as a subject normally takes a singular verb:

• Comer bien ayuda.
• Dormir poco perjudica la salud.
• Responsabilizarse protege el bienestar animal.

Even though the idea may feel broad, grammatically it is treated as one thing.

Bienestar animal is the standard expression for animal welfare.

It does not usually mean just the animals’ happiness in a casual sense. It refers more broadly to the well-being, treatment, and living conditions of animals.

This is a very common phrase in formal, educational, legal, and ethical contexts.

Both are possible, but they are slightly different in style.

• el bienestar animal = animal welfare
  This is the more compact, standard, institutional phrase.
• el bienestar de los animales = the welfare of animals
  This is more explicit and a little less fixed as a set phrase.

Spanish often uses a noun + adjective structure where English might use a noun + noun:

• bienestar animal = animal welfare
• derechos humanos = human rights
• salud pública = public health

So animal here is an adjective meaning related to animals.

Because in bienestar animal, animal is functioning as an adjective, not as a noun meaning one animal.

So it is like saying:

• animal welfare
• animal protection
• animal rights

In these kinds of fixed expressions, Spanish often uses the singular adjective form:

• bienestar animal
• maltrato animal
• protección animal

It refers to the whole field or category, not to one single animal.

Yes, you could, but it is not exactly the same.

• La responsabilidad protege el bienestar animal focuses on responsibility as an abstract quality or principle
• Responsabilizarse protege el bienestar animal focuses on the act of taking responsibility

So the original sentence sounds more dynamic and action-based: it emphasizes what happens when people step up and take responsibility.

It is understandable and correct, but it sounds a bit more formal or institutional than some everyday alternatives.

Depending on context, Spanish speakers might also say:

• Asumir la responsabilidad
• Hacerse responsable
• Ser responsable

For example:

• Hacerse responsable protege el bienestar animal
• Asumir la responsabilidad protege el bienestar animal

The original sentence is natural, especially in awareness campaigns, educational texts, or formal writing.

Yes. Spanish allows some flexibility, though the original order is the most straightforward.

For example:

• Responsabilizarse protege el bienestar animal.
• El bienestar animal lo protege responsabilizarse. — grammatically possible, but less natural and much more marked
• Responsabilizarse ayuda a proteger el bienestar animal. — a common rewording

The original sentence is clear and neutral. It starts with the key concept and then states its effect.

Depending on context, a more everyday version might be:

• Hacerse responsable ayuda a proteger el bienestar animal.
• Asumir la responsabilidad protege a los animales y su bienestar.
• Ser responsables protege el bienestar animal.

The given sentence is correct, but it has a slightly formal / campaign-style tone, which is common in public messaging.

Yes, three things stand out:

1. An infinitive can be the subject
   Spanish does this very naturally:

   • Fumar mata.
   • Reciclar ayuda.

2. Some verbs include a reflexive/pronominal form as part of their meaning

   • responsabilizarse is not just responsabilizar + se added randomly
   • the se belongs to the verb here

3. Spanish often uses noun + adjective where English uses noun + noun

   • bienestar animal = animal welfare
     Not welfare animal

Those three patterns are all very useful beyond this one sentence.