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
Three-banded plover t. bifrontatus" has a grey band between the bill and the white forehead, and the sides of the head are grey. The sexes are similar, and the juveniles of the nominate and Madagascan subspecies also resemble the adults, although the forehead is brownish for a short time. This species is distinguished from the larger, darker Forbes’s plover in that the latter species has a brown forehead and lacks a white wingbar. Three-banded plover The three-banded plover, or three-banded sandplover ("Charadrius tricollaris"), is a small wader. This plover is resident in much of eastern and southern Africa and Madagascar, mainly on