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

Nauplia stadiums

1. Nauplia stadium

The Nauplia body has an oval about 1mm large form, on the side in each case 3 "sleeves" with bristles for the movement and to filter feed (floating algae, micro-organisms) out of the water. They move only twitching and very slowly.

At this stage the animals can only differ light and dark.

2. Nauplia stadium


After the first molt, the Nauplia reaches the second stage, in which it is almost doubled, and light limbs appear, and become longer, and the "arms" also become larger, which allows a quick advance.

3. Nauplia stadium


Now the Nauplia is about 3mm big and has become again somewhat longer.

You can now also see 2 eyes and an approach of the fork tail.
In addition, the three "arms" have become 3 probes. The Nauplie, however, still moves with them, and indeed faster than ever before. A small tank can be seen.

4. Nauplia stadium



(The upper picture is shortly after the molt into the 4th stage and the lower 12 hours after)

The last Nauplia service has been reached and the Nauplie looks almost like a real Triops. It is about 4mm big and 3-4 days old.

The skull plate now has its typical shape and is now more clearly recognizable and the fork tail has lengthened again. The petals are almost ready to be used slowly to move, they are already in motion. The antenna arms (sensors) have also grown again and are still used for the movement. In addition, it is now the first time that they can move their hull. She is now very active on food search. In the 4th stage, the Nauplie again grows 1.5 - 2 times.

Last stage: the finished triops after about 2 - 4 days depending on the type and conditions.
In the next days and weeks, the Triops will still increase in size and color.

Here we go to the anatomy of the " fully developed Triops"

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