Charybdis
The mythical Charybdis was feared by sea explorers for centuries. Known as a sea monster in Greek Mythology, it became incredibly popular due to its use in Homer’s Iliad and The Odyssey tales. It was used as an “epic challenge” for characters like Odysseus, Jason, as well as Aeneas. It is widely assumed by scholars that Homer’s placement of the creature would have been in the Strait of Messina. Homer used the Charybdis and Scylla as challenges to get past in the sea because both alone were nearly impossible to defeat or avoid once spotted.
This gave rise to the idiom “between Scylla and Charybdis” which is similar in meaning to “between a rock and a hard place.” Charybdis was essentially a flesh-eating whirlpool monster, and most would find this to be absolutely crazy. Yet much like a lot of Homer’s work, there is some truth to the myth. Whirlpools are a real thing that can be experienced in the ocean and are not at all uncommon. It is likely that Homer, or someone he met, saw something like this in the ocean and felt it had to be some sort of monster that was responsible for it. Thereby, giving rise to the tale of one of the most mysterious animals or creatures ever.