Cannibalism is defined as the fact of killing, followed by consumption of either all or part of conspecifics.Cannibalism has many important evolutionary and ecological implications.

• 摘要同种相残是指动物杀死并取食同种其他个体的行为，一般被认为是种群密度自我调节的一种方式，常常是影响种群动态和群落结构的重要因素，具有重要的生态学和进化生物学意义。