Invertebrate

The common fruit fly, Drosophila melanogaster, has been used extensively for research.

Invertebrates are animals that neither possess nor develop a vertebral column (commonly known as a backbone or spine), derived from the notochord. This includes all animals apart from the subphylum Vertebrata. Familiar examples of invertebrates include insects; crabs, lobsters and their kin; snails, clams, octopuses and their kin; starfish, sea-urchins and their kin; jellyfish, and worms.

The majority of animal species are invertebrates; one estimate puts the figure at 97%.[1] Many invertebrate taxa have a greater number and variety of species than the entire subphylum of Vertebrata.[2]

Some of the so-called invertebrates, such as the Tunicata and Cephalochordata are more closely related to the vertebrates than to other invertebrates. This makes the invertebrates paraphyletic, so the term has little meaning in taxonomy.

Etymology

The word "invertebrate" comes from the Latin word vertebra, which means a joint in general, and sometimes specifically a joint from the spinal column of a vertebrate. The jointed aspect of vertebra is derived from the concept of turning, expressed in the root verto or vorto, to turn.[3] The prefix in- means "not" or "without".[4]

Other Languages
Afrikaans: Ongewerweldes
العربية: لافقاريات
asturianu: Invertebráu
azərbaycanca: Onurğasızlar
беларуская: Беспазваночныя
български: Безгръбначни
bosanski: Beskičmenjaci
brezhoneg: Divellkeineg
català: Invertebrat
čeština: Bezobratlí
Cymraeg: Infertebrat
Deutsch: Wirbellose
eesti: Selgrootud
Ελληνικά: Ασπόνδυλο
español: Invertebrado
Esperanto: Senvertebruloj
euskara: Ornogabe
français: Invertébré
galego: Invertebrado
한국어: 무척추동물
Bahasa Indonesia: Avertebrata
interlingua: Invertebrato
íslenska: Hryggleysingjar
italiano: Invertebrata
Basa Jawa: Avertebrata
ಕನ್ನಡ: ಅಕಶೇರುಕ
kernowek: Divellkeynek
Kreyòl ayisyen: Envètebre
Кыргызча: Омурткасыздар
Latina: Invertebrata
lietuvių: Bestuburiai
македонски: Без’рбетници
മലയാളം: അകശേരുകികൾ
Bahasa Melayu: Invertebrata
Nederlands: Ongewervelden
日本語: 無脊椎動物
norsk nynorsk: Virvellause dyr
occitan: Invertebrata
oʻzbekcha/ўзбекча: Umurtqasizlar
ਪੰਜਾਬੀ: ਕੰਗਰੋੜਹੀਣ
پنجابی: انکنگریڑے
Plattdüütsch: Warvellose Deerter
polski: Bezkręgowce
português: Invertebrados
română: Nevertebrate
संस्कृतम्: अकशेरुकाः
Simple English: Invertebrate
slovenčina: Bezstavovce
slovenščina: Nevretenčarji
српски / srpski: Бескичмењаци
srpskohrvatski / српскохрватски: Beskralježnjaci
Basa Sunda: Invertebrata
Tagalog: Imbertebrado
తెలుగు: అకశేరుకాలు
тоҷикӣ: Бемуҳраҳо
Türkçe: Omurgasızlar
українська: Безхребетні
Winaray: Inbertebrado