A very specialized feeding adaptation in zooplankton is that of the tadpolelike appendicularian who lives in a walnut-sized (or smaller) balloon of mucus equipped with filters that capture and concentrate phytoplankton.
浮游动物体内一种极特殊的进食适应性变化是蝌蚪状的尾海鞘纲动物(appendicularian)的那种适应性变化,而尾海鞘纲动物则存活于核桃大小(或更小)的黏液球囊内,装备有过滤器,用以捕捉和集中浮游植物。