Plus, corals are related to anemones and jellyfish, and the fleshy polyps have nasty stinging cells called , which resemble tiny harpoons that spear prey or potential attackers and can inject chemicals.
此外,珊瑚与海葵和水母有亲缘关系,
肉质的水螅体具有名为刺细胞的恶毒刺胞, 这些刺胞类似于微型鱼叉, 可以刺穿猎物或潜在攻击者, 并注入化学物质。