Often mistaken as flora, corals are marine invertebrates that grow  in tight clusters along the ocean floor.

珊瑚常被误认为是植物群，它们是海洋无脊椎动物，沿着海底密集生长。

Coral bleaching occurs when warm ocean temperatures cause coral to expel the algae living in their tissue, turning the usually-vivid marine invertebrates completely white.

当温暖的海洋温度导致珊瑚驱逐生活在它们组织中的藻类，使通常鲜艳的海洋无脊椎动物完全变白时，珊瑚就会漂白。

Sea cucumbers are members of the phylum Echinodermata, along with sea urchins, starfish and other radially symmetrical, " spiny-skinned" marine invertebrates.

海参是棘皮动物门的成员，还有海胆、海星和其他径向对称的“多刺”海洋无脊椎动物。