This is very cool -- a vaccine for foulbrood in honey bees is in trials! Invertebrate immune systems are so different from ours. Super interested in the results. https://www.sciencenews.org/article/honeybees-and-shrimp-getting-vaccinated

My #1 favorite thing to tell people about isopods is that they are land shrimp! Crustaceans, not insects. #2 fave is that they have pouches like kangaroos and give live birth. https://www.kqed.org/science/2000948/release-the-brood-roly-poly-birthing-is-intense