It should be treated with caution , especially at night when it is active , and has been known to charge at divers with its mouth agape if harassed .
The shock generated by the Pacific electric ray can be enough to knock down an adult human .
Pacific electric ray should be treated with caution , especially at night when it is active , and has been known to charge at divers with Pacific electric ray 's mouth agape if harassed .
The shock generated by the Pacific electric ray can be enough to knock down an adult human .