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
Pacific golden plover plover then has a yellowish face and breast, and white underparts. It is similar to two other golden plovers: the Eurasian and American plovers. The Pacific golden plover is smaller, slimmer and relatively longer-legged than the European golden plover, "Pluvialis apricaria", which also has white axillary (armpit) feathers. Overall, the Pacific golden plover is found to be more similar to the American golden plover, "Pluvialis dominica", with which it was once considered conspecific as "lesser golden plover". The Pacific golden plover is slimmer than the American species, has a shorter primary projection, longer legs, and is usually found to have