Do any animals know that someday they will die?

There is no definitive answer to this question, as it is difficult to determine the level of self-awareness and consciousness in animals. Some animals may have a sense of their own mortality, while others may not. There is evidence to suggest that some animals, such as elephants and chimpanzees, may mourn the death of their loved ones, which could indicate that they have some understanding of the concept of death. However, it is also possible that these animals are simply responding to the loss of a companion or the changes in their social group, rather than having a conscious understanding of the finality of death.

Without being able to communicate directly with animals, it is impossible to know for sure what they think or feel about death. Therefore, the question of whether any animals know that someday they will die remains a matter of debate and speculation.