Excerpts from the June 13, 2000 live webcast from underwater at Race Rocks. Northern sea lions visit the divers and end up by giving an aggressive threat display. One sea lion dives at the diver, then veers off at the last moment. This display is often accompanied by the snapping of teeth. Listen for it as the animal makes a close approach. It is adviseable that when sealions exhibit this behaviour it usually means you are encroaching on their territory and it would be best if you leave. 

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