- ... that the gooseneck barnacle Pollicipes polymerus (several pictured) will become sterile if there are no others within 20 cm (8 in)?
- ... that the clawless lobster Tricarina is known from a single fossil, obtained from an oil well 3,852 m (12,638 ft) below ground in western Iran?
- ... that Japanese skeleton shrimp are invading the coastlines of North America, Europe, and New Zealand?
- ... that swarms of Japanese soldier crabs of the species Mictyris guinotae, named after French biologist Danièle Guinot, can be used in place of the billiard balls in billiard-ball computers?