Tiraɣlalin

Tiraɣlalin (Assaɣ ussnan: Invertebrata) d irem i d-issemsel umesnudran Afrensaw (Jean-Baptiste Lamarck) i wakken ad iglem iɣersiwen ur nli ara (ur nesɛi ara) ajgu n uzagur.Table 1: Numbers of threatened species by major groups of organisms (1996–2014).  Imalla tagrawt-a d tin igebbren yakk iɣersiwen anagar tinaɣlalin (Iselman, Timraradin, Tikelmanin, Igṭaṭ d temsuṭaṭ) 

Imusnawen n tesnudert ggunin deg beṭṭu n iɣersiwen-a ɣef waṭas n yisefka, am: tmerwest, amruj afekkan d tissiwin timessiruwin

 Tigti n imuddiren 

 Agzam d beṭṭu 
 Timerwest: imesnudranen bṭan imuddiren ɣer tsendisin (Bilateria) d timmardisin (Radiata) ma d talmest taneggart d tirmarwasin (Asymmetry). Tiraɣalil sgensisent-d azal n 97% n yiɣersiwen yellan deg umadal

 Asesmel 
 Tiswermin

 Ẓeṛ daɣen 
 Tinaɣlalin

 Imniren 
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