Almost all pufferfish contain tetrodotoxin, a substance that makes them foul tasting and often lethal to fish. To humans, tetrodotoxin is deadly, up to 1,200 times more poisonous than cyanide. There is enough toxin in one pufferfish to kill 30 adult humans, and there is no known antidote.
Amazingly, the meat of some pufferfish is considered a delicacy. Called fugu in Japan, it is extremely expensive and only prepared by trained, licensed chefs who know that one bad cut means almost certain death for a customer. In fact, many such deaths occur annually.
Amy Lowell - 1874-1925
White, glittering sunlight fills the market square,
Spotted and sprigged with shadows. Double rows
Of bartering booths spread out their tempting shows
Of globed and golden fruit, the morning air
Smells sweet with ripeness, on the pavement there
A wicker basket gapes and overflows
Spilling out cool, blue plums. The market glows,
And flaunts, and clatters in its busy care.
A stately minster at the northern side
Lifts its twin spires to the distant sky,
Pinnacled, carved and buttressed; through the wide
Arched doorway peals an organ, suddenly —
Crashing, triumphant in its pregnant tide,
Quenching the square in vibrant harmony.