![Several large goose barnacles, covered in large white scale-like plates.](http://upload.wikimedia.org/wikipedia/commons/thumb/7/72/Pollicipes_polymerus_3.jpg/120px-Pollicipes_polymerus_3.jpg)
- ... that the gooseneck barnacle Pollicipes polymerus (several pictured) will become sterile if there are no others within 20 cm (8 in)?
- ... that in 1781 both a Danish zoologist and a Swedish naturalist described the transverse ladybird?
- ... 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 the crab Dyspanopeus sayi may have lived in the Venetian Lagoon for 15 years before it was discovered?
- ... that Polybius henslowii has more swimming legs than other swimming crabs?