Psychology of Sympathizing with Death
Empathy (exists because cooperation can lead to better survival chances)
Elephants, apes (chimpanzee), donkeys. 
Dolphins at least see https://en.wikipedia.org/wiki/Empathy#Evolution


https://books.google.ch/books?hl=en&amp;lr=&amp;id=tNaTfIlMh8wC&amp;oi=fnd&amp;pg=PP1&amp;dq=empathy+death+animal&amp;ots=2J8RPQfOy3&amp;sig=BJuNrb4k7JtiVAFqmWEbeZjiFB8#v=onepage&amp;q=dolphin&amp;f=false