ukukhangisa
i-symmetry ye-starfish

Ifosili yembula umsuka we-starfish symmetry.

I-Cambrian fossil evela e-Morocco icacisa ukuthi i-starfish yasuka kanjani ku-symmetry yamazwe amabili yaya emisebeni emihlanu. Imininingwane ebalulekile evela ocwaningweni lwe-IGME-CSIC.

Inkalankala kakhukhunathi

Kulesi sihloko sizokukhombisa ukuthi ziyini izici zenkalankala kakhukhunathi. Funda konke ngalezi zinhlobo zokufuna ukwazi lapha.