Why do porcupinefish puff up?

iv'e eaten it twice in my Island home of Jamaica,on the fishing beach called Grenwich farm in kingston.

LUCIANVENOM, Both pufferfish and porcupinefish are correct

Yvònne, I think they are absolutely amazing and super cool. I like fish too eat but I probably wouldn't eat this one. God, sure makes awesome creatures.

Yvònne, interesting! is it tasty?

LUCIANVENOM, If you read the notes under the options you’ll see that there are several names .

it's called "pufferfish" not porcupinefish

easy paesy