El clima es un gran problema, o sea, los animales se protegen mutuamente.

Questions & Answers about El clima es un gran problema, o sea, los animales se protegen mutuamente.

Why do we need both se and mutuamente in this sentence?
The pronoun se on its own can mean 'themselves' (reflexive) or 'each other' (reciprocal). Without mutuamente, se protegen could just mean the animals protect themselves. Adding mutuamente clears up any confusion and emphasizes that they actively protect each other.
Could I use los unos a los otros instead of mutuamente here?
Yes! You could say los animales se protegen los unos a los otros. Both clarify that the action is reciprocal. Mutuamente is often used when you want a single, concise adverb, while los unos a los otros is very common in everyday speech and means the exact same thing.
Why is it el clima and un problema if both words end in -a?
Many Spanish words ending in -ma that come from Greek are masculine. That is why we use masculine articles for el clima and el problema. This is one of the most common exceptions to the general rule that words ending in -a are feminine.
Why is it gran problema instead of grande problema?
The adjective grande drops its final syllable (becoming gran) whenever it comes directly before a singular noun, regardless of whether that noun is masculine or feminine. You would use grande if it came after the noun, like un problema grande, which means exactly the same thing.
How exactly is o sea being used here?
O sea literally translates to 'or it might be,' but it is a very common connector phrase meaning 'in other words,' 'I mean,' or 'that is to say.' Here, it links the bad climate to the animals' reaction, explaining the consequence in a natural, conversational way.

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