I have always have appreciated the lives of all animals.

"The lives of all animals" is somewhat formal.

I think that the dolphins and whales they are special, and very close to us in intelligenllyce.

Humans should be a bit fewer denot act as predators.

"Depredator" is an old term no longer used in daily language. Since you are trying to say "humans should not be predators" or "humans should take fewer predatory actions," which are also unusual in common language, I recommend the change above. It is a big change, but I hope it fits your intended meaning.

I think that the dolphins and whales they are special, and are very close to us in intelligenllyce.

We cannot solve the cClimate cCrisis without protecting our oceans.

Humans should be a bit fewer depredatorsmore considerate.

This is an odd phrase, so I’ve changed it to something that has the same meaning !

Save Tthe Whales

I have always have appreciated the lives of all animals.

I think that the dolphins and whales they are special, and that they are very close to us in intelligenllyce.

The Earth is like a bubble, and as such, all is closely connected.

I would put a connecting phrase in between the two clauses.

Humans should be a bit fewernot be depredators.

I hope this is what you mean to say.

Save Tthe Whales

I have always have appreciated the livfe of all animals.

I think that the dolphins and whales they are special, and very close to us in regards to intelligenllyce.

The Eearth is like a bubble and alleverything is closely connected.

Humans shouldn't be a bit fewersuch depredators.

There's no adjective/adverb that goes with depredator, so I had to change the structure.