Ojo ori gbogbo awon  ajalelokun meerin wa laarin metadinlogun si okandinlogun, gege bi Akowe  olugbeja U.S.. 
Protura, tàbí àwọn proturan, tí ìnagísì rẹ̀ ń jẹ́ conehead, jẹ́ àwọn ẹranko kékèké (<2mm mm ní gígun), tí wọ́n ń gbé inú iye, wọ́n kéré tó bẹ́è tí a kò ṣàyé títí di ogún ogún sẹ́yìn.  Protura jẹ́ ẹgbẹ́ àwọn ẹgbẹ́ | a ka sí àwọn kòkòrò Insesàn, tí a ma an ko an sí ayé wọn sí ayé..Awon ìtọ́kasí wọn tógun ìji' rẹ̀.. 