Predators
The hammerhead shark frequently preys on the bluespotted stingray. Also the killer whale is a threat, generally preying on juvenile rays. The rays coloration is a warning for the highly poisonous barbs, thus few animals attempt to overpower this ray. The hammerhead shark uses its head to pin down the bluespotted stingray, while it is in shock and much weaker. When a killer whale encounters a stingray they dig them up from the sand, then launch them into the air. Another strategy for subduing the ray involves the whale turning upside down, then biting the ray and flipping over, putting the stingray belly up and causing it to enter tonic immobility.
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