Nile crocodile stability and additional weight to sink in water, this bearing great probability over the theories that they assist in digestion and staving off hunger. However, Alderton (1998) stated that a study using radiology found that gastroliths were seen to internally aid the grinding of food during digestion for a small Nile crocodile. Herodotus claimed that Nile crocodiles have a symbiotic relationship with certain birds, such as the Egyptian plover ("Pluvianus aegyptius"), which enter the crocodile's mouth and pick leeches feeding on the crocodile's blood, but no evidence of this interaction actually occurring in any crocodile species has been found, and
European golden plover (AEWA) applies. European golden plover The European golden plover ("Pluvialis apricaria"), also known as the Eurasian golden plover or just the golden plover within Europe, is a largish plover. This species is similar to two other golden plovers: the American golden plover, "Pluvialis dominica", and Pacific golden plover, "Pluvialis fulva", which are both smaller, slimmer and relatively longer-legged than European golden plover, and both have grey rather than white axillary feathers (only properly visible in flight). The genus name is Latin and means relating to rain, from "pluvia", "rain". It was believed that golden plovers flocked when rain was imminent.