It’s a combination but it’s not universal. Most flexible. Bacteria. High numbers. Smallest. Oldest species. Longest lived individual via protection: Turtles. Great immune system: Parrots. Fighters? I dunno. Fighters die, so I don’t know why they’re thought of as survivors.

It’s a combination but it’s not universal.
Most flexible. Bacteria. High numbers. Smallest. Oldest species.
Longest lived individual via protection: Turtles.
Great immune system: Parrots.

Fighters? I dunno. Fighters die, so I don’t know why they’re thought of as survivors.

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