<b>Geoffroy's Sideneck Turtle</b> (Phrynops geoffroanus) is a notable freshwater species native to South America, recognized for its unique ability to retract its head sideways into its shell and its adaptable omnivorous diet. Typically found in slow-moving rivers and swamps within tropical and subtropical climates, these turtles play a crucial role in their ecosystem by maintaining aquatic balance and contributing to nutrient cycling.