Datura inoxia also known as Moon Flower. All Datura plants contain tropane alkaloids such as scopolamine, hyoscyamine, and atropine, primarily in their seeds and flowers. Because of the presence of these substances, Datura has been used for centuries in some cultures as a poison and as a hallucinogen.
A pair of Blue Dragon Nudibranchs | Pteraeolidia ianthina
"Pteraeolidia has evolved a method of capturing and farming microscopic plants (zooxanthellae) in its own body. The plants flourish in this protected environment and as they convert the sun’s energy into sugars, they pass a significant proportion on to the nudibranch for its own use.Adults can last some time without feeding, presumably obtaining sufficient nourishment from their zooxanthellae gardens.” -