Dude I have been sick all day but this made me smile thank you . <| sep |> I just started studying psihology so what I ' m about to write might not be a proven fact but my own opinion and observation . We don ' t know much about their brains because of the lack of communication between them and us , which is quite obvious . We do however know all about ther brain structure . The brains of other mammals are kind of subordinate brains to the human brain . This means our brain is just an evolved dogs , cats , or any other mammals brain you can think of . There is a part of human brain which is called limbic system and we don ' t know exactly what it does at least I think so but we know its primal function is survival behaveior regulation , such as fight , flight , feeding and reproduction sexual behaveior . This puts us really close to them when we talk to basic survival . The part of human brain called Telencephalon is the part that controls our most complicated functions complex cognitive processes . Our Telencephalon is on a higher stage of evolution . This means they can think and also have some cognitive processes like learning new skills talking parrots , police dogs , etc . Now let ' s get to animals . Can they talk to each other ? Yes they can , but not how I think you picture it . They smell each other mainly , but they can also '' talk '' in a number of ways , such as howling , singing , gestures , or ultrasound waves like dolphins . Do they judge us ? No , they can ' t judge you , because you we are a different species . Also , their telencephalon is not as evolved as ours so they can ' t comperhend that level of cognitive process . Can they get heartbroken ? I think they caan , at least some of them , but the answer to this question could go on for long . Do they kill themselves intentionally ? I think not , but there were some reports of some kind of bird killing themselves by competing in flying close to the floor thus banging into it and dying . I think that ' s some kind of their social phenomenon . Some know they will die so they go and die alone somewhere , which is quite fascinating if you ask me . TLDR 1 . Lack of communication . 2 . Yes they can , but in their own way . 3 . No . They don ' t have the part of the brain for such complex cognitive functions as judging . 4 . I think not , but there were some cases with some species don ' t know which ones now 5 . No . that ' s my humble opinionFor more information you can read John J . P . Pinel ' s '' Biological psychology '' amazing bookEDIT lapsus calami