இலவச வீடியோ Magicicada Periodical Cicadas பார்க்கவும்
அனிமேஷன் விளக்கம்:
They are called periodical because nearly all individuals in a local population are developmentally synchronized and emerge in the same year.
They are called periodical because nearly all individuals in a local population are developmentally synchronized and emerge in the same year.