- "A Poison Tree" is a poem written by William Blake, published in 1794.
- This tiny blue ringed octopus is about the size of a golf ball. His Venom can cause blindness, nausea, paralysis and respiratory failure, as well as death.
- The poison the dart frog’s glands contain is called batrachotoxin. This toxin blocks nerve signals to muscles, causing paralysis and death.
- The Hooded Pitohui causes irritations an numbness if you just touch the feathers. Eating them without precautions isn't a good idea, it's the last supper.
Poison is a metaphor for immortal love in Rome and Juliet and for perfidious murder and betrayal in Hamlet- Prince of Denmark.