Parasitism is a kind of predator-prey relationship in which one organism, the parasite, derives its food at the expense of its symbiotic associate, the host.
寄生是一种捕食者与被捕食者之间的关系，寄生者利用共生伙伴——宿主来获取食物。
2
This deceptively minimalist predator-prey game triggers some remarkably intense feelings.
这个极其简单的虚拟捕食--被捕食游戏引发了一些显著而强烈的情绪。
3
He suggests that these observations of bugs predating reptiles call into question previously held opinions about predator-prey dynamics in freshwater habitats.