Puffer Fish

Puffer fish have evolved to avoid being preyed upon by squid, their inflatable skin and articulating spines detering the soft-bodied predators whose teeth are unable to gain any purchase on the extended smooth surface. This is achieved with specialized pump-like organs just off the respiratory tract. Puffers and their relatives are unique among Minecraft fishes for having a tail distinct from the main body, which allows it to remain stable while in motion (as opposed to the full-body undulation of others). This is especially helpful for a species that picks the bulk of its food from the sediment on the ocean floor.

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