On one distant isolated planet, far away from all the chaos of the homeworld, the Breegans who lived there went a different way than their cousins.

They would start biohacking themselves into bizarre creatures that could do all kinds of weird things and try to outdo each other. Eventually one Breegan philosopher decided that ignorance was bliss, so he removed his self awareness and started a new race of Breegan animals.

But that experiment was kind of weird.

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Another scientist postulated that Breegans were happier in their pre-evolved forms. So he and a team terraformed an entire world that was exactly the same as pre-modern Breegans, then biohacked their DNA with their ancestors and leaped out of a helicopter, landed in the jungle, and disappeared.

They had planted cameras all over the planet.

The intention was for the Breegans to sit back from their home world and watch. If they liked what they saw, they could (for a fee) participate in the experiment themselves.

Of course, none of them did. They had altered their DNA and fundamentally changed into a race of helpless warmongerers.