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Kelpien culling ritual

The Ba'ul harvest a group of Kelpiens

The Ba'ul ship was a vessel used by the Ba'ul to perpetrate their harvesting of the Kelpiens.

Aradar noted that fragments of the ship were sometimes left behind, but "to keep it is forbidden."

When a piece was left in the 2230s, Aradar asked Saru to dispose of the fragment. Instead, Saru clandestinely took the piece apart until he was able to use it as a communications beacon – eventually reaching out and being heard by Starfleet Lieutenant Philippa Georgiou. Georgiou noted it was extraordinary that Saru, a member of a pre-warp civilization, was able to use the device. (ST: "The Brightest Star")

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