YOU SAID:

I dont want to talk about whales and dolphins because both are bad animals

INTO JAPANESE

私はクジラとイルカについて話したくありません。

BACK INTO ENGLISH

I do not want to talk about whales and dolphins.

INTO JAPANESE

クジラやイルカについては話したくありません。

BACK INTO ENGLISH

I do not want to talk about whales and dolphins.