Random trivia you learned from GMing

[voideternal]

When I GM Pathfinder, I research to gain inspiration and detail in the setting I'm describing.
I do this because, in my opinion, sometimes it's the small little things that make the setting more believable.

In this thread, I invite fellow GMs and players to share us the random trivia you gained through playing Pathfinder RPG.
Hopefully it's interesting and fun. And maybe we can learn a thing or two that we can use in our next session or character.
As a note, the trivia you share should not be about Pathfinder game rules, or how not to be an a!&!+#~ at the table. I think we have enough of those threads.

The general formats for the posts should be:

Quote:

Context: A small blurb describing what led you to learn the trivia

Trivia: The trivia itself

I will start.

Context: As a GM, I wanted to add giant termites to a big tree that the PCs were climbing, and decided to do some research.
Trivia: Some termites headbang their nest to convey messages, such as "There is a breach in our nest, need help".

[Rennaivx]

Dotting. I play lots of play-by-post, so I've got opportunity to research what I'm saying even as a player. I've gotten lots of tidbits like this...but can't recall specifics. XD

[voideternal]

Shamelessly bumping

Context: I wanted to give my katana-using PC a cool sword, but I thought Masamune and Muramasa were cliche.
Trivia: The legendary katana Otenta (or O-denta Mitsuyo) has a queer legend. They say when birds perched on the warehouse that stored the legendary sword, the birds would spontaneously drop dead, and the ground would be littered with the corpses of birds.