In certain species of fish, such as seahorses, the offspring are raised in a tetraparental system, with both the male and female parents as well as two additional "helpers" taking care of the young.
在某些鱼类中，比如海马，子嗣在一个四亲家庭结构中被抚养，包括雄性和雌性父母以及另外两个"助手"照顾幼崽。