DENIZENS OF THE DEEP SEA

SCOMBRIDAE

These include fishes such as Trout, mackerel, skipjack, tuna etc.  The danger in these creatures is found not in their morphology but in the type of food they eat.  They accumulate toxin in their body by feeding on small fishes which in turn feed on poisonous algae. 

Hence caution should be taken when consuming them.

Deadly Fishes