| This is just one of an extraordinary sequence of curious encounters between orcas and divers in the waters off New Zealand. |
| Resident orcas are highly vocal and communicate with a learned repertoire of clicks, whistles and squeals. |
| The sailboat has a fin keel and a rudder that resemble the dorsal and pectoral fins of orcas. |
| Last but not least is Sumi, an animal-guardian spirit with Thunderbird wings, powerful black bear legs and a protective orca hat. |
| Five river dolphin species and 34 oceanic species have been identified, including the orca and melon-headed and pilot whales. |
| There have been numerous complaints of the orca rubbing against vessels and floatplanes and there is a growing concern that his behaviour may escalate aggressively. |
