Well... have you had your sea-snail toxins?
University of Queensland researchers have noticed that many animals see side-effect-free pain relief from conotoxins released as part of potentially deadly sea-snail venom, & are working to make this available to humans.
Leeches have been used for centuries, so it’s interesting to see other beasties being investigated. Mind you, sea snails wouldn’t have been my first choice. (-:
Sorry, the weirdness wasn’t quite finished for the day. (-: