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
Diademed sandpiper-plover Diademed sandpiper-plover The diademed sandpiper-plover or diademed plover ("Phegornis mitchellii") is a species of bird in the plover family Charadriidae. It is monotypic within the genus Phegornis. The relationship of this species to other plovers is uncertain, a 2010 study suggested it may be related to the Australian dotterels. The species is found in the Puna grassland ecozone of the Andes Mountains from Argentina and Chile, through Bolivia to Peru. In this habitat it prefers mossy tundra, high-altitude grassland, bogs and swamps. It is an altitudinal migrant, breeding between above sea-level, but wintering at . The diademed sand-piper-plover is a