Cave creatures

Cave creature includes those that can only multiply in a cave and may not survive outside a cave, and thus it is also called true cave creature, which include lower plant such as alga, microorganism, vertebrate such as blind fish, blind loach, invertebrate such as spider, diplopod, cricket and chilopod. Typical species of troglobites lack chromatophore and are weak-eyed. Compared with those of the related species living on the ground, their legs and antenna usually have more sensory nerve endings, and there are much sensory hairs on their bodies. Cave plants only exit near the mouth of a cave. As there is less light deep in the cave, the plant species also decrease dramatically, and the organs and the organism structure also changes correspondingly. Cave plants mainly consist of ceterach, moss, lichen and alga.