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Yes they do but they don't target humans. Vampire bats prefer the blood of large animals such as cattle and horses.
https://www.youtube.com/watch?v=UMK_T24fptc
Animals do mourn nature shows and zoologists have captured footage of animals mourning their dead. This video is of Langur monkeys mourning a robot who they thought was one of their own that passed away. https://www.youtube.com/watch?v=vaIH5tLmC8U
Drugs do exist within the animal kingdom catnip is the most known one but dolphins get high from pufferfish, deer eating psychedelic mushrooms, and lemurs get high off millipedes https://matadornetwork.com/read/animals-hallucinogenic-drugs/