Question

Why pufferfish has these unique traits or behaviors.

Answer 1

In lieu of escape, pufferfish use their highly elastic stomachs and the ability to quickly ingest huge amounts of water (and even air when necessary) to turn themselves into a virtually inedible ball several times their normal size. Some species also have spines on their skin to make them even less palatable.

Answer 2

Explanation:

for their survival and defense