You seem quite adamant about that.
Could you please share your sources?
I always love to learn about new theories which try to explain animal behaviour and communication, particularly inter species communication.
I am not an ethologist. I do have an MA in psychology but I must admit that I am a complete ignorant about new trends in the field and it’s been a long time since I was last in contact with the academic world. Still, I am really fascinated to know about this taxonomy that categorizes depression as a basic emotion and anger as a higher one that requires a developed level of thought.