- ... that Leptodora (pictured) is the largest planktonic cladoceran, and its type species is probably the only cladoceran to have been described in a newspaper?
- ... that the woodlouse Trichoniscus pusillus has some populations that reproduce sexually and others that reproduce clonally?
- ... that Hemimysis anomala, a mysid shrimp native to the Ponto-Caspian region, has recently invaded the North American Great Lakes?
- ... that the New Zealand endemic amphipod Paraleptamphopus caeruleus lives in "bog-water on top of Swampy Hill"?