'the' ocean

[Tvita]

Forest, mountains, sea, ocean, animals, birds and even different kinds of creepy-crawlies are much more interesting for me.

Should we put 'the' before the 'ocean' in the sentence above?

[Kraken]

Why do you think we should add "the" to ocean and only to ocean?

[azkad]

Forests, mountains, seas, oceans, animals, birds and even different kinds of creepy-crawlies are much more interesting for me.

Should we put 'the' before the 'ocean' in the sentence above?

When speaking generally, you don't usually need the definite article for plural nouns. When speaking of specific things, like the ocean you have seen and so on, you should refer to the definite article.