What characteristic do seahorses and sea dragons share that is unique among all animals?

I have no idea 🤷🏻‍♂️ But if you know, you must be a smarty pants and should probably come to our next trivia on 8/21! Sponsored by our friends at Roadhouse Brewing and hosted by the ever fun and charming Dewey Decimal, good times and prizes guaranteed!

Starts at 6:30, first come first served, so come early as it fills up fast!!