Radiographic evaluation of gastroliths in a group of 49 juvenile saltwater crocodiles ( <i>Crocodylus porosus</i> ) in the UK

Large numbers of relatively small gastroliths are likely a normal radiographic finding in juvenile crocodiles. As crocodiles increase in size, ingestion and retention of medium/large gastroliths may reduce body buoyancy to aid in increasing dive times and hunting of larger prey.