食虫植物
食蟲植物大多生長在貧瘠且酸性的土壤，他們大多需要充足的光源。土壤須保持潮濕，園藝上常使用的土壤有泥炭土，鹿沼土，赤玉土，珍珠石，蘭石等等，切記不可使用培養土。
扁形动物门
絛蟲有扁瘦但非常長的身體。其學名 “cestode”的字根源於拉丁語的，意思就是「帶子」。這3400個絛蟲的物種的成蟲都是內部寄生蟲。牠們沒有口部和腸臟， and the syncitial skin absorbs nutrients – mainly carbohydrates and amino acids – from the host, and also disguises it chemically to avoid attacks by the host's immune system. Shortage of carbohydrates in the host's diet stunts the growth of the parasites and kills some. Their metabolisms generally use simple but inefficient chemical processes, and they compensate by consuming large amounts of food relative to their size.