Triops already lived 220 million years ago and are thus the oldest still living animal species

Anatomy of the Triops

The Triops is not born at the same time as Triops, but runs through the hatch 4 Nauplienstadien.
Afterwards, it becomes a real Triops.

Here you can choose between the anatomy of the nauplia and that of the fully developed Triops:

Nauplia stadiums Triops-Nauplien

Fully developed Triops Triops

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