- ... that crayfish of the Madagascan genus Astacoides (pictured) have fewer gills than any other crayfish?
- ... that Yongjiacaris represents the second report of freshwater caridean shrimp from the Mesozoic era?
- ... that the bioluminescent ostracod Vargula hilgendorfii, named after Franz Hilgendorf, was used as a light source by Japanese soldiers in World War II?
- ... that the "extremely productive carcinologist" American Raymond B. Manning amassed the world's largest collection of mantis shrimp?