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Holothuria Pervicax
''Holothuria pervicax'' is a species of sea cucumber in the genus ''Holothuria''. It is commonly called the stubborn sea cucumber due to its inability to be kept alive in captivity. It is commonly found buried beneath rocks on reefs in warm waters. Description ''Holothuria perviax'' is a gray or brown sea cucumber with red-brown papillae and white tube feet for locomotion. Its body is elongated with an oral-aboral orientation and can grow up to 30 centimeters. It has a soft epidermis and a somewhat bumpy body. Its mouth is surrounded by thin branched tentacles with poorly formed spricules found around the body. Distinctions between ''H. perviax'' and sister species fusconierea are hard to find but the main differences are spicule size and slight coloration differences. This species is very high maintenance and requires a specific lifestyle in order to survive. Aquariums have had a very hard time keeping these animals happy and have yet to keep one alive in captivity which has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Individual
An individual is that which exists as a distinct entity. Individuality (or self-hood) is the state or quality of being an individual; particularly (in the case of humans) of being a person unique from other people and possessing one's own Maslow's hierarchy of needs, needs or goals, rights and moral responsibility, responsibilities. The concept of an individual features in diverse fields, including biology, law, and philosophy. Etymology From the 15th century and earlier (and also today within the fields of statistics and metaphysics) ''individual'' meant "divisible, indivisible", typically describing any numerically singular thing, but sometimes meaning "a person". From the 17th century on, ''individual'' has indicated separateness, as in individualism. Law Although individuality and individualism are commonly considered to mature with age/time and experience/wealth, a sanity, sane adult human, human being is usually considered by the State (polity), state as an "individu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
