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。
The other kind stab their prey with a spikey-tipped arm.
其他种类的螳螂虾则是用尖矛状钳子刺穿猎物。
"When a prey species makes an alarm call of any kind, the game is up," Sagarin said.